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video: /qVVhBGT0K7Y.webm
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![0:14](./qVVhBGT0K7Y/0_14.png)

Aren't you a forensic? What brings you to our squad? What's your connections to the Raw Diamond case?

![0:25](./qVVhBGT0K7Y/0_25.png)

None. Then why'd you show up at the trading spot?

![0:34](./qVVhBGT0K7Y/0_34.png)

Answer me! Why did you come here?

![2:20](./qVVhBGT0K7Y/2_20.png)

Not just me. Anyone here, and even anyone Lanzi might have met after she left,

![2:26](./qVVhBGT0K7Y/2_26.png)

could be the killer. We're gonna check

![2:32](./qVVhBGT0K7Y/2_32.png)

every suspect. But right now, you're our prime suspect.

![2:41](./qVVhBGT0K7Y/2_41.png)

In the autopsy report, was there any erosive bleeding?

![2:52](./qVVhBGT0K7Y/2_52.png)

Or any foreign objects in Lanzi's stomach?

![2:58](./qVVhBGT0K7Y/2_58.png)

Please go ahead. You've got a person dead from cyanide poisoning,

![3:03](./qVVhBGT0K7Y/3_03.png)

but you can't figure out when or where the poison got slipped to her?

![3:09](./qVVhBGT0K7Y/3_09.png)

It means the poison was already in her body.

![3:16](./qVVhBGT0K7Y/3_16.png)

You mean there's no killer? Qiu Lanzi poisoned and killed herself?

![3:25](./qVVhBGT0K7Y/3_25.png)

You found my fingerprints on that bottle of water. But it's because

![3:30](./qVVhBGT0K7Y/3_30.png)

that one wasn't for Lanzi.

![3:36](./qVVhBGT0K7Y/3_36.png)

Ms. Zhu! Ms. Zhu, what did Mr. Qi say? He thinks the cyanide

![3:42](./qVVhBGT0K7Y/3_42.png)

was already in Qiu Lanzi's body. How did he know? The report was turned in just now.

![3:50](./qVVhBGT0K7Y/3_50.png)

Have you heard of remote case-solving? It's to find out the truth by analyzing crime scenes

![3:55](./qVVhBGT0K7Y/3_55.png)

and examining bodies without physical presence. Only a few forensic doctors can do this,

![4:00](./qVVhBGT0K7Y/4_00.png)

and Qi Sizhe is one of them.

![4:06](./qVVhBGT0K7Y/4_06.png)

Gao Yuan. Check the stuff he used in the lab. Then compare them with that bottle of water.

![4:12](./qVVhBGT0K7Y/4_12.png)

Okay. I go with you.

![4:20](./qVVhBGT0K7Y/4_20.png)

Did you transfer here because of what happened before?

![4:27](./qVVhBGT0K7Y/4_27.png)

You followed Jiang Fei, went to the bar, and visited Li Yiqi in the hospital.

![4:33](./qVVhBGT0K7Y/4_33.png)

What do you wanna do? I've told you. That's not truth.

![4:45](./qVVhBGT0K7Y/4_45.png)

Han Feng. You really think I'd kill a forensic intern

![4:51](./qVVhBGT0K7Y/4_51.png)

I just met?

![4:57](./qVVhBGT0K7Y/4_57.png)

You know very well it couldn't be me. What I think matters not.

![5:02](./qVVhBGT0K7Y/5_02.png)

Figuring out the truth matters.

![5:22](./qVVhBGT0K7Y/5_22.png)

Since he's helping with the case, maybe you could clue him in on some of the stuff we've dug up,

![5:29](./qVVhBGT0K7Y/5_29.png)

just enough to speed things along and catch the killer faster.

![5:36](./qVVhBGT0K7Y/5_36.png)

Okay. Mr. Gao. Please test Mr. Qi's water

![5:42](./qVVhBGT0K7Y/5_42.png)

and effervescent tablets. Tell us what you find out. Okay. Thank you.

![6:03](./qVVhBGT0K7Y/6_03.png)

Mr. Han. Ms. Zhu. The results come out. The report shows each of their saliva

![6:08](./qVVhBGT0K7Y/6_08.png)

in the other's water. So Qiu Lanzi took his water by mistake.

![6:13](./qVVhBGT0K7Y/6_13.png)

Yes. The water Lanzi drank should be Mr. Qi's soda water. And in Mr. Qi's bag

![6:19](./qVVhBGT0K7Y/6_19.png)

was just mineral water. Okay.

![6:25](./qVVhBGT0K7Y/6_25.png)

Gotta go.

![6:33](./qVVhBGT0K7Y/6_33.png)

Mr. Han. Ms. Zhu.

![6:42](./qVVhBGT0K7Y/6_42.png)

I've sure you've known why my fingerprints were on that bottle of water.

![6:49](./qVVhBGT0K7Y/6_49.png)

I wanna know why you said the cyanide was already in Qiu Lanzi's body.

![6:55](./qVVhBGT0K7Y/6_55.png)

I think Lanzi was usually on meds.

![7:01](./qVVhBGT0K7Y/7_01.png)

We did find some stomach meds in her bag. What meds? Omeprazole.

![7:07](./qVVhBGT0K7Y/7_07.png)

What else did the autopsy find? Found two drug capsules in her stomach. The shells looked melted,

![7:13](./qVVhBGT0K7Y/7_13.png)

and one of them had cracked open. Last question.

![7:20](./qVVhBGT0K7Y/7_20.png)

How many pills are left in her medicine bottle? Just one.

![7:39](./qVVhBGT0K7Y/7_39.png)

I think I know how Lanzi was murdered. Lanzi's stomach med, omeprazole, is an enteric-coated capsule.

![7:46](./qVVhBGT0K7Y/7_46.png)

It's designed to pass through the stomach without breaking down in the acid, then get absorbed

![7:52](./qVVhBGT0K7Y/7_52.png)

in the intestines where things are more alkaline. However, it was found in her stomach.

![7:59](./qVVhBGT0K7Y/7_59.png)

Why? Qiu Lanzi took your water by mistake. It was soda water,

![8:05](./qVVhBGT0K7Y/8_05.png)

making the capsule dissolve quicker. The coating on the capsules is slow-release,

![8:10](./qVVhBGT0K7Y/8_10.png)

so they should start working within 4 to 12 hours. But she drank soda, and that cut the time

![8:16](./qVVhBGT0K7Y/8_16.png)

way short. So the cyanide was hidden in Lanzi's stomach med capsules.

![8:24](./qVVhBGT0K7Y/8_24.png)

One of the two capsules in her stomach had cracked open.

![8:29](./qVVhBGT0K7Y/8_29.png)

The killer must've noticed it too when slipping cyanide into the capsules. Once the capsule coating

![8:35](./qVVhBGT0K7Y/8_35.png)

gets partly dissolved by the soda, the cyanide inside comes into contact with the stomach lining.

![8:41](./qVVhBGT0K7Y/8_41.png)

The corrosive poison will definitely cause erosive bleeding in there.

![8:48](./qVVhBGT0K7Y/8_48.png)

How to prove it? There's still one pill left in her medicine bottle.

![8:55](./qVVhBGT0K7Y/8_55.png)

Su.

![9:09](./qVVhBGT0K7Y/9_09.png)

I'm sorry, Ms. Zhao. The cooperation with He City is about to end, and you're going abroad. Sorry we have to call you back.

![9:14](./qVVhBGT0K7Y/9_14.png)

It's fine. I'll be there if you need me. So what happened? What do you want me to check?

![9:22](./qVVhBGT0K7Y/9_22.png)

Mr. Qi figured the victim might take omeprazole capsules laced with cyanide, but then drank soda by accident.

![9:27](./qVVhBGT0K7Y/9_27.png)

That made the capsule dissolve in the stomach instead of the intestines. We've found the capsules in her stomach.

![9:34](./qVVhBGT0K7Y/9_34.png)

So we need you here to test one last pill in the victim's medicine bottle.

![9:41](./qVVhBGT0K7Y/9_41.png)

I got this. Thank you.

![10:13](./qVVhBGT0K7Y/10_13.png)

How is it? Ms. Zhao is testing the pill. It needs some time.

![10:20](./qVVhBGT0K7Y/10_20.png)

Cross-check all the evidence and don't miss any details. I'll wait here. Okay.

![10:34](./qVVhBGT0K7Y/10_34.png)

The dosage of omeprazole is three pills a day, one in the morning and two in the evening.

![10:40](./qVVhBGT0K7Y/10_40.png)

If the killer wanted to make sure Lanzi died that very night, he must've made certain

![10:46](./qVVhBGT0K7Y/10_46.png)

at least one of the two pills she took was poisoned.

![10:52](./qVVhBGT0K7Y/10_52.png)

If he only poisoned one pill, Lanzi might not take it until the second morning.

![10:57](./qVVhBGT0K7Y/10_57.png)

That's a one-in-three chance. But if he poisoned three pills, then there'd always be

![11:03](./qVVhBGT0K7Y/11_03.png)

one poisoned pill left as evidence. So, poisoning exactly

![11:10](./qVVhBGT0K7Y/11_10.png)

two pills was the sweet spot. But if Qiu Lanzi

![11:16](./qVVhBGT0K7Y/11_16.png)

took both the poisoned ones, we couldn't find anything in the left one as evidence.

![11:21](./qVVhBGT0K7Y/11_21.png)

She's got a one-in-three chance of swallowing both poisoned pills, which means

![11:27](./qVVhBGT0K7Y/11_27.png)

the killer only has that same shot at not leaving evidence in the medicine.

![11:33](./qVVhBGT0K7Y/11_33.png)

So we're just gambling on the last one.

![11:47](./qVVhBGT0K7Y/11_47.png)

We've got the result. The pill indeed contains cyanide, same as Mr. Qi supposed.

![12:04](./qVVhBGT0K7Y/12_04.png)

Mr. Qi, you're off the hook for now. You can go.

![12:12](./qVVhBGT0K7Y/12_12.png)

Ms. Zhu. I wanna help with the case and find out Lanzi's murderer.

![12:17](./qVVhBGT0K7Y/12_17.png)

And, something's off with Jiang Fei's autopsy report.

![12:24](./qVVhBGT0K7Y/12_24.png)

I'm afraid you gotta stay outta Jiang Fei and Qiu Lanzi's case.

![12:32](./qVVhBGT0K7Y/12_32.png)

I wanna see Jiang Fei's autopsy report. You're not the only forensic here. You don't gotta handle every single case.

![13:02](./qVVhBGT0K7Y/13_02.png)

Come in. Mr. Bai.

![13:12](./qVVhBGT0K7Y/13_12.png)

Qi Sizhe is off the hook now? Yes. And he found out how Qiu Lanzi died?

![13:22](./qVVhBGT0K7Y/13_22.png)

Qi Sizhe is a brilliant forensic doctor. And he's quite reasonable.

![13:28](./qVVhBGT0K7Y/13_28.png)

So he won't blame you for the necessity of your interrogation of him.

![13:36](./qVVhBGT0K7Y/13_36.png)

Mr. Bai. Do you know about his past?

![13:43](./qVVhBGT0K7Y/13_43.png)

He had a severe car accident. And I thought we'd lose a talented forensic doctor.

![13:49](./qVVhBGT0K7Y/13_49.png)

But I never thought he'd manage to hit rehab milestones in just a year that usually

![13:54](./qVVhBGT0K7Y/13_54.png)

take others three to five years. You can imagine how much this position means to him.

![14:03](./qVVhBGT0K7Y/14_03.png)

But he's quite stubborn. So is Han Feng. Among you three,

![14:10](./qVVhBGT0K7Y/14_10.png)

you're the calmest and most rational one. So I hope you can get them together

![14:15](./qVVhBGT0K7Y/14_15.png)

and handle cases.

![14:26](./qVVhBGT0K7Y/14_26.png)

Where's Xi? I had her check 788 Bar's security footage. I still have some doubts.

![14:32](./qVVhBGT0K7Y/14_32.png)

We found the cyanide in Qiu Lanzi's stomach meds. The killer could

![14:38](./qVVhBGT0K7Y/14_38.png)

get close to her and switch her meds. So it could be someone she knew all along.

![14:46](./qVVhBGT0K7Y/14_46.png)

Qiu Lanzi said something was off with Jiang Fei's body. Ask Mr. Gao to check his autopsy report again.

![14:54](./qVVhBGT0K7Y/14_54.png)

Su. Dig deeper into the social circles around Qiu Lanzi, Jiang Fei, and Li Yiqi,

![14:59](./qVVhBGT0K7Y/14_59.png)

especially Qiu Lanzi's connections. Okay. Mr. Han. Anything to add?

![15:05](./qVVhBGT0K7Y/15_05.png)

Nothing, for now.

![16:05](./qVVhBGT0K7Y/16_05.png)

Xi, got anything? Yeah. Half a month before Li Yiqi's case,

![16:10](./qVVhBGT0K7Y/16_10.png)

Mr. Qi showed up at 788 Bar quite a few times. I cross-checked a few security footages. Every time Mr. Qi showed up,

![16:16](./qVVhBGT0K7Y/16_16.png)

Jiang Fei was there too. Looks like Mr. Qi was following Jiang Fei.

![16:35](./qVVhBGT0K7Y/16_35.png)

Ms. Zhu. Here's Qi Sizhe's info. He had a severe

![16:41](./qVVhBGT0K7Y/16_41.png)

accident two years ago. A woman riding in his car died on the spot.

![16:49](./qVVhBGT0K7Y/16_49.png)

Ms. Zhu. Anything wrong with him? Get back to work. Yes.

![18:24](./qVVhBGT0K7Y/18_24.png)

Why did you come? Why did you follow Li Yiqi and Jiang Fei?

![18:40](./qVVhBGT0K7Y/18_40.png)

You know why. 'Cause it's related to Fei's death.

![18:47](./qVVhBGT0K7Y/18_47.png)

Raw Diamond...

![18:57](./qVVhBGT0K7Y/18_57.png)

You came for the Raw Diamond case. Jiang Fei's death isn't an accident.

![19:05](./qVVhBGT0K7Y/19_05.png)

It's a murder.

![19:14](./qVVhBGT0K7Y/19_14.png)

His body was found at 11:30 or so in the morning. It's the same as room temperature,

![19:20](./qVVhBGT0K7Y/19_20.png)

22 degrees. He's got these little square marks on his chest, bright red.

![19:25](./qVVhBGT0K7Y/19_25.png)

And the lividity on the side of the body is all patchy, dark red. Any problems? The bright red lividity

![19:30](./qVVhBGT0K7Y/19_30.png)

doesn't match the estimated time of death, and the body's cooling rate is way off. There are two possibilities.

![19:36](./qVVhBGT0K7Y/19_36.png)

First, the killer was trying to mess with the time of death. Second, the way the murder was done

![19:43](./qVVhBGT0K7Y/19_43.png)

messed with the body's temperature. And I think the second one's way more likely.

![19:49](./qVVhBGT0K7Y/19_49.png)

So my guess is, Jiang Fei probably... Froze to death?

![19:54](./qVVhBGT0K7Y/19_54.png)

At his own home? But his place doesn't have such an environment. There is one.

![20:09](./qVVhBGT0K7Y/20_09.png)

No way. It's too small.

![20:16](./qVVhBGT0K7Y/20_16.png)

If the killer stuffed Jiang Fei into the fridge, there gotta be

![20:21](./qVVhBGT0K7Y/20_21.png)

a lot of scratches and marks on Jiang Fei's body. But so far, there aren't any

![20:27](./qVVhBGT0K7Y/20_27.png)

such marks on the body. Only lividity. Lividity is the marks formed by blood

![20:33](./qVVhBGT0K7Y/20_33.png)

due to gravity at the dripping points. Jiang Fei was lying on his side when he died.

![20:38](./qVVhBGT0K7Y/20_38.png)

So, the lividity should only have formed on the side. But look here.

![20:45](./qVVhBGT0K7Y/20_45.png)

There are bright red marks on Jiang Fei's chest. Also, when Jiang Fei died,

![20:51](./qVVhBGT0K7Y/20_51.png)

his clothes were all wrinkled. His clothes look like they got wet and then dried off...

![20:58](./qVVhBGT0K7Y/20_58.png)

His fingers and toes were all wrinkled, a result of prolonged soaking in water

![21:04](./qVVhBGT0K7Y/21_04.png)

and osmosis. Jiang Fei was always a slob, so it's no wonder his clothes were wrinkled.

![21:11](./qVVhBGT0K7Y/21_11.png)

When we found the body, there was water at the bottom of the bathtub. The wrinkles on his skin were probably caused by soaking in the water.

![21:17](./qVVhBGT0K7Y/21_17.png)

Well, going by your logic, his fingers and toes shouldn't have gotten wrinkly since they haven't touched

![21:23](./qVVhBGT0K7Y/21_23.png)

the water at the bottom of the tub. But turns out that's not what happened.

![21:35](./qVVhBGT0K7Y/21_35.png)

So Jiang Fei didn't freeze to death in a freezer, but in the...

![21:40](./qVVhBGT0K7Y/21_40.png)

In the bathtub.

![21:49](./qVVhBGT0K7Y/21_49.png)

The window in Jiang Fei's bathroom has always been open.

![22:13](./qVVhBGT0K7Y/22_13.png)

When the body was found, the ice had already melted, but there were frostbite

![22:18](./qVVhBGT0K7Y/22_18.png)

marks on the body. The bright red mark on his chest is

![22:23](./qVVhBGT0K7Y/22_23.png)

the best proof. This is also caused by the failure of

![22:29](./qVVhBGT0K7Y/22_29.png)

various organs at low temperatures.

![22:34](./qVVhBGT0K7Y/22_34.png)

Judging from the traces at the scene, everything matches what Mr. Qi said.

![22:39](./qVVhBGT0K7Y/22_39.png)

Got it. Han Feng.

![22:45](./qVVhBGT0K7Y/22_45.png)

Are you buying that Jiang Fei's death wasn't an accident but murder now?

![23:02](./qVVhBGT0K7Y/23_02.png)

If Mr. Qi's reasoning holds up, we gotta check this place for any signs of

![23:07](./qVVhBGT0K7Y/23_07.png)

a second person. Search more thoroughly.

![24:07](./qVVhBGT0K7Y/24_07.png)

I wanna learn more from you and become a great forensic doctor like you!

![24:30](./qVVhBGT0K7Y/24_30.png)

Ms. Zhu. Any progress in Jiang Fei's case?

![24:37](./qVVhBGT0K7Y/24_37.png)

You've been cleared of suspicion. So why still look into Jiang Fei? I know you're really concerned about Jiang Fei's case

![24:43](./qVVhBGT0K7Y/24_43.png)

and Li Yiqi's case. I also know you can lead us closer to the truth.

![24:49](./qVVhBGT0K7Y/24_49.png)

But so far, you haven't explained the coincidences of your appearance

![24:55](./qVVhBGT0K7Y/24_55.png)

in these two cases. And this time,

![25:00](./qVVhBGT0K7Y/25_00.png)

why did you go to investigate Jiang Fei alone?

![25:06](./qVVhBGT0K7Y/25_06.png)

I want you to answer my question. And I'm not gonna answer any questions related to this case

![25:12](./qVVhBGT0K7Y/25_12.png)

until I trust you. Ms. Zhu.

![25:18](./qVVhBGT0K7Y/25_18.png)

I'm a forensic doctor. When someone dies, only forensic doctors can tell what they

![25:26](./qVVhBGT0K7Y/25_26.png)

went through before they died. And I believe whoever it is,

![25:33](./qVVhBGT0K7Y/25_33.png)

even drug dealers like Jiang Fei, they all deserve the truth.

![25:39](./qVVhBGT0K7Y/25_39.png)

I saw the possibility of homicide in Jiang Fei's case. So I gotta figure out the truth.

![25:48](./qVVhBGT0K7Y/25_48.png)

But he's quite stubborn. So is Han Feng.

![25:54](./qVVhBGT0K7Y/25_54.png)

So I hope you can get them together and handle cases.

![26:03](./qVVhBGT0K7Y/26_03.png)

So Jiang Fei died a little after 4 am? Yes.

![26:08](./qVVhBGT0K7Y/26_08.png)

If he froze to death, his body temperature was lower than normal. So the time it takes to cool down

![26:13](./qVVhBGT0K7Y/26_13.png)

would be shorter. Mr. Han.

![26:19](./qVVhBGT0K7Y/26_19.png)

Mr. Qi inferred that Jiang Fei froze to death. Let him tell us about it.

![26:33](./qVVhBGT0K7Y/26_33.png)

All we know is that Jiang Fei was frozen to death by the killer, but there aren't any clues

![26:39](./qVVhBGT0K7Y/26_39.png)

to find the killer. The killer made Jiang Fei

![26:45](./qVVhBGT0K7Y/26_45.png)

take cephalosporin when he was drunk, causing a disulfiram-like reaction.

![26:50](./qVVhBGT0K7Y/26_50.png)

Then, when he was unconscious, the killer froze his body with ice, which led to the failure of all his

![26:56](./qVVhBGT0K7Y/26_56.png)

internal organs, especially his heart, and he died. It shows that the killer has some knowledge human physiology.

![27:02](./qVVhBGT0K7Y/27_02.png)

Mr. Gao, after the first autopsy and test, what was in his stomach as food residue?

![27:09](./qVVhBGT0K7Y/27_09.png)

Wine and sausage, no cephalosporin. But the cephalosporin on his table was already opened,

![27:15](./qVVhBGT0K7Y/27_15.png)

and the pharmacological test detected it. The sausage wasn't digested, which means the last thing

![27:22](./qVVhBGT0K7Y/27_22.png)

the victim ate was the sausage.

![27:33](./qVVhBGT0K7Y/27_33.png)

Have you found a knife there? No. There are cuts on the sausage

![27:39](./qVVhBGT0K7Y/27_39.png)

but no knife around. Could someone have taken it? Jiang Fei's body didn't have

![27:45](./qVVhBGT0K7Y/27_45.png)

a scratch on it. The knife couldn't be the murder weapon. So why'd the killer take it away?

![27:52](./qVVhBGT0K7Y/27_52.png)

Did you guys do luminol at the scene?

![28:02](./qVVhBGT0K7Y/28_02.png)

There are no cuts on the body, but the killer had to take the knife from the scene.

![28:07](./qVVhBGT0K7Y/28_07.png)

That means... The knife wasn't used on the victim. But on the killer.

![28:48](./qVVhBGT0K7Y/28_48.png)

If this isn't Jiang Fei's blood, then it gotta be the killer's.

![29:01](./qVVhBGT0K7Y/29_01.png)

Why didn't you ask Mr. Qi to do the bloodstain comparison?

![29:06](./qVVhBGT0K7Y/29_06.png)

The results are out. No records matching in the database. Thank you.

![29:24](./qVVhBGT0K7Y/29_24.png)

So here's the timeline of these cases. On the evening of the 7th, Qiu Lanzi joined us investigating

![29:29](./qVVhBGT0K7Y/29_29.png)

the 788 Bar assault case. Then she teamed up with Mr. Gao and Mr. Qi

![29:35](./qVVhBGT0K7Y/29_35.png)

for the Li Yiqi's blood sample analysis until the next day. We found Jiang Fei's body at noon the next day,

![29:42](./qVVhBGT0K7Y/29_42.png)

and Qiu Lanzi showed up later. That night, she, Mr. Qi and Mr. Gao dissected Jiang Fei's body.

![29:49](./qVVhBGT0K7Y/29_49.png)

We found the remains of stomach meds in Qiu Lanzi's stomach. Based on the dissolution rate of the meds

![29:55](./qVVhBGT0K7Y/29_55.png)

and the timeline, Qiu Lanzi should've taken the stomach meds between the time

![30:00](./qVVhBGT0K7Y/30_00.png)

after the dissection of Jiang Fei's body and her death. The first time Qiu Lanzi left the station

![30:06](./qVVhBGT0K7Y/30_06.png)

and met me was around 9 pm. Two hours later, I got a call from Qiu Lanzi.

![30:12](./qVVhBGT0K7Y/30_12.png)

She said she'd found a lead on Jiang Fei's body. Ten minutes later, when Mr. Han and I got to the forensic office,

![30:19](./qVVhBGT0K7Y/30_19.png)

we found her body. The stomach medicine was found among her belongings.

![30:24](./qVVhBGT0K7Y/30_24.png)

She usually kept her stuff in the locker in the changing room. Got anything from the surveillance over there?

![30:29](./qVVhBGT0K7Y/30_29.png)

No cameras on the floor. There are just people going to and from work there. And Mr. Bai means we shouldn't

![30:35](./qVVhBGT0K7Y/30_35.png)

expand the investigation for now. He wants us to narrow down the suspects first.

![30:46](./qVVhBGT0K7Y/30_46.png)

So the most likely time for Qiu Lanzi to take the pills is between the time

![30:51](./qVVhBGT0K7Y/30_51.png)

she left the station and came back. We just don't know where she went and who she met.

![31:04](./qVVhBGT0K7Y/31_04.png)

What about Jiang Fei? Don't forget Qiu Lanzi said she had info about

![31:10](./qVVhBGT0K7Y/31_10.png)

Jiang Fei's cause of death before she died. Jiang Fei went home after getting drunk.

![31:16](./qVVhBGT0K7Y/31_16.png)

Where did he drink and who did he drink with? Have you found out? He didn't use mobile payment or cards. He always used cash,

![31:22](./qVVhBGT0K7Y/31_22.png)

so it's hard to find his consumption records. People like him are always afraid of leaving any clues.

![31:31](./qVVhBGT0K7Y/31_31.png)

Wan, let's go to the bar to check Jiang Fei's movements before he drank.

![31:36](./qVVhBGT0K7Y/31_36.png)

Xi, go and find out who Qiu Lanzi met after she left the station. Let's split up.

![31:42](./qVVhBGT0K7Y/31_42.png)

Okay. Do as Mr. Han says.

![32:04](./qVVhBGT0K7Y/32_04.png)

It's here, Mr. Han.

![32:10](./qVVhBGT0K7Y/32_10.png)

No, Mr. Han...

![32:46](./qVVhBGT0K7Y/32_46.png)

You're in charge here? This is legit business. Legit business? Then why so serious,

![32:52](./qVVhBGT0K7Y/32_52.png)

needing a guide to find here? Oh, come on! This is a gimmick. More people will wanna come in

![32:58](./qVVhBGT0K7Y/32_58.png)

if they need someone to bring them in. That's smart. Since it's so complicated to get here,

![33:04](./qVVhBGT0K7Y/33_04.png)

you should know who came here the day before yesterday, right? Sir. How the heck can I remember

![33:10](./qVVhBGT0K7Y/33_10.png)

all these guests every day? Take us to the security room. Sir. You need a warrant to do so.

![33:17](./qVVhBGT0K7Y/33_17.png)

A warrant, huh? I'm gonna call my buddies from Public Security Brigade and let them check it out.

![33:28](./qVVhBGT0K7Y/33_28.png)

Sir. You can check whatever you want.

![33:35](./qVVhBGT0K7Y/33_35.png)

We checked Jiang Fei's social circles. Super complicated. He's lived in cities all over the country. A drug dealer like him's gonna

![33:41](./qVVhBGT0K7Y/33_41.png)

have a lot of enemies. If we just look at the motives for murder, there are a bunch of suspects.

![33:46](./qVVhBGT0K7Y/33_46.png)

Here's his hidden ledger we found. There are up to 40 drug addicts listed in it, not to mention those

![33:53](./qVVhBGT0K7Y/33_53.png)

who bought imitation guns, plasma, and illegal drugs. Ms. Zhu. This is Qiu Lanzi's phone.

![33:59](./qVVhBGT0K7Y/33_59.png)

Got anything? I checked Qiu Lanzi's call records. After she left at 9 o'clock,

![34:05](./qVVhBGT0K7Y/34_05.png)

she made four consecutive calls within five minutes, and they were all to the same person. Who?

![34:11](./qVVhBGT0K7Y/34_11.png)

It's a chemical factory's lab. But it was off-work time then, and she called the switchboard,

![34:16](./qVVhBGT0K7Y/34_16.png)

so we still can't find out who she contacted. We gotta find out what relationship this factory has with Qiu Lanzi.

![34:22](./qVVhBGT0K7Y/34_22.png)

Okay. Ms. Zhu. Have you checked Qiu Lanzi's phone?

![34:28](./qVVhBGT0K7Y/34_28.png)

Xi just gave it to me. I watched the videos of Qiu Lanzi before and after she left here. She never stopped checking her phone.

![34:36](./qVVhBGT0K7Y/34_36.png)

I remembered that Mr. Han told me when he saw Qiu Lanzi that day, she was also anxiously checking her phone.

![34:43](./qVVhBGT0K7Y/34_43.png)

There must be some clues on her phone. She just didn't have time to tell us then.

![34:54](./qVVhBGT0K7Y/34_54.png)

Stop. Who's the girl drinking with Jiang Fei?

![35:01](./qVVhBGT0K7Y/35_01.png)

Jiang Fei had introduced her to us. Zhang Lu, I remember. She's into Lolita fashion, close to Jiang Fei.

![35:08](./qVVhBGT0K7Y/35_08.png)

She took photos of Jiang Fei's body? But phones are forbidden in the dissection room...

![35:14](./qVVhBGT0K7Y/35_14.png)

Maybe she had some reason. Check out these last three photos.

![35:20](./qVVhBGT0K7Y/35_20.png)

The first two are of the tattoo on Jiang Fei's arm, one taken without a black light,

![35:26](./qVVhBGT0K7Y/35_26.png)

and the other with a black light. And the last one is of the skin on his wrist.

![35:32](./qVVhBGT0K7Y/35_32.png)

Also, the first two were taken at the same time. But there's a gap of over 20 minutes before the last one.

![35:38](./qVVhBGT0K7Y/35_38.png)

Why did she wait over 20 minutes to take a photo of the skin on the wrist

![35:44](./qVVhBGT0K7Y/35_44.png)

without a black light? What did she find out?

![35:51](./qVVhBGT0K7Y/35_51.png)

I saw some illegal stuff in the bar near Ruixi Building. I just saw it when working.

![35:57](./qVVhBGT0K7Y/35_57.png)

It's fine. You're welcome. Treat me to dinner then.

![36:05](./qVVhBGT0K7Y/36_05.png)

Wan. Thank you. It's nothing.

![36:11](./qVVhBGT0K7Y/36_11.png)

Ms. Zhu asked me to investigate with you. No need to say that.

![36:24](./qVVhBGT0K7Y/36_24.png)

I saw Qiu Lanzi taking those photos, but I just glanced and left.

![36:30](./qVVhBGT0K7Y/36_30.png)

I was in the next room with Ms. Zhao taking samples for toxicology testing. If you also left,

![36:37](./qVVhBGT0K7Y/36_37.png)

then Lanzi was the only one left in the autopsy room. But when she was taking the photos,

![36:45](./qVVhBGT0K7Y/36_45.png)

she asked me what this was. What is this? It should be an old injury

![36:51](./qVVhBGT0K7Y/36_51.png)

or a mark left after having a tattoo removed. No. It seems to be a fluorescent tattoo.

![37:10](./qVVhBGT0K7Y/37_10.png)

There are two photos of the tattoo on the left forearm, one in natural color and the other under a black light.

![37:17](./qVVhBGT0K7Y/37_17.png)

If we follow the logic of the previous two photos, there should be another black-light photo.

![37:28](./qVVhBGT0K7Y/37_28.png)

There are lots of group photos of Jiang Fei with different girls on his phone, and one of them is Zhang Lu, the girl we've been looking for.

![37:35](./qVVhBGT0K7Y/37_35.png)

Zhang Lu, 24 years old, living in Xinhua Road, He City, an intern researcher at an inorganic chemistry institute,

![37:40](./qVVhBGT0K7Y/37_40.png)

majored in chemistry. She knows Qiu Lanzi. They were high school classmates, so they rented an room

![37:46](./qVVhBGT0K7Y/37_46.png)

and were roommates shortly. In the call records we retrieved, the last call Qiu Lanzi made

![37:52](./qVVhBGT0K7Y/37_52.png)

was to Zhang Lu's workplace.

![38:08](./qVVhBGT0K7Y/38_08.png)

You said you saw Zhang Lu and Qiu Lanzi arguing that day, right? Yeah.

![38:15](./qVVhBGT0K7Y/38_15.png)

I did see them arguing. But I didn't catch what they were arguing about.

![38:25](./qVVhBGT0K7Y/38_25.png)

When I left, I saw that girl wasn't feeling well and took some medicine.

![38:32](./qVVhBGT0K7Y/38_32.png)

Are you sure Qiu Lanzi took medicine at that time? I'm sure.

![38:46](./qVVhBGT0K7Y/38_46.png)

Where's Zhang Lu? Mr. Han. We've been searching for her with your info.

![39:00](./qVVhBGT0K7Y/39_00.png)

Excuse me. Your ID card and driving license please. Please open your trunk.

![39:12](./qVVhBGT0K7Y/39_12.png)

You're Zhang Lu, right? Zhang Lu. Please cooperate with us.

![39:34](./qVVhBGT0K7Y/39_34.png)

Zhang Lu, 24 years old. A researcher of the chemistry institute in He City. Were you at the basement bar

![39:41](./qVVhBGT0K7Y/39_41.png)

in Yunjin Building with Jiang Fei on the evening of August 7th? Yeah.

![39:47](./qVVhBGT0K7Y/39_47.png)

Then did you go home with him? No. I just had a few drinks and went back to my own place.

![39:53](./qVVhBGT0K7Y/39_53.png)

Is there anyone who can prove it? Prove it? Why? I live alone.

![39:59](./qVVhBGT0K7Y/39_59.png)

How can there be a witness? So no one can prove you stayed at your own place that night.

![40:09](./qVVhBGT0K7Y/40_09.png)

What was Jiang Fei's state when you saw him for the last time? He...

![40:17](./qVVhBGT0K7Y/40_17.png)

He seemed to catch cold. You're out drinking with a cold?

![40:26](./qVVhBGT0K7Y/40_26.png)

Do you even know that mixing antibiotics with alcohol could kill you?

![40:32](./qVVhBGT0K7Y/40_32.png)

But I just really wanted to have a drink with you.

![40:41](./qVVhBGT0K7Y/40_41.png)

How'd you hurt your finger? Cut it during an experiment.

![40:46](./qVVhBGT0K7Y/40_46.png)

What did Qiu Lanzi say when she came to the lab? What'd she tell you guys?

![40:52](./qVVhBGT0K7Y/40_52.png)

Isn't she interning here? Call her over! I'll confront her! Qiu Lanzi's dead.

![40:59](./qVVhBGT0K7Y/40_59.png)

Did you kill her? Dead... How... How come...

![41:12](./qVVhBGT0K7Y/41_12.png)

Zhang Lu, now we suspect you're the prime suspect in the murder cases of Qiu Lanzi and Jiang Fei. Got anything to say?

![41:20](./qVVhBGT0K7Y/41_20.png)

If Zhang Lu's blood sample matches the one we took from Jiang Fei's place, she's most likely

![41:26](./qVVhBGT0K7Y/41_26.png)

the killer. I didn't! I never killed anyone!

![41:31](./qVVhBGT0K7Y/41_31.png)

I didn't... I really didn't! Then just answer our questions! What did she say to you?

![41:37](./qVVhBGT0K7Y/41_37.png)

She... She told me Jiang Fei was dead,

![41:44](./qVVhBGT0K7Y/41_44.png)

and she saw my name on the body...

![41:59](./qVVhBGT0K7Y/41_59.png)

How is it? Wait a moment.

![42:17](./qVVhBGT0K7Y/42_17.png)

Ms. Zhu. The result is out.

![42:23](./qVVhBGT0K7Y/42_23.png)

Mr. Han. It matches.

![42:30](./qVVhBGT0K7Y/42_30.png)

Su. Arrest her. Xi, untie her. It's her.

![42:36](./qVVhBGT0K7Y/42_36.png)

No... Not me! I didn't kill them! I didn't!

![42:42](./qVVhBGT0K7Y/42_42.png)

It's not me! It's really not me! I never killed anyone! It's not me! I didn't!

![42:47](./qVVhBGT0K7Y/42_47.png)

Don't arrest me! Please! It's not me! You got the wrong person! It's not me! Not me!

![42:52](./qVVhBGT0K7Y/42_52.png)

Really not! I didn't kill them! You got the wrong person! It's not me! Not me!

![43:06](./qVVhBGT0K7Y/43_06.png)

We got the wrong person. It's not her.

![43:33](./qVVhBGT0K7Y/43_33.png)

Raw Diamond case is over! You just can't deal with reality! You never figured out Fei's death!

![43:39](./qVVhBGT0K7Y/43_39.png)

Li Yiqi. Jiang Fei. They're the clue from the case! Hey! Stop!

![43:45](./qVVhBGT0K7Y/43_45.png)

There's an opening here. The kidnapped girl was probably taken inside.

![43:50](./qVVhBGT0K7Y/43_50.png)

The killer set this up to throw us off about the cause of death. He knows way too much about

![43:56](./qVVhBGT0K7Y/43_56.png)

forensic, autopsies, even our police procedures. Wait, are you saying... The killer is one of us?