Name, Jang Tae Joo.
He's a drug offender Mr. Seo arrested four years ago.
He got out on parole a month ago.
According to the physical checkup from prison,
his height is 182cm, and his shoe size is 285mm.
Wait, what? He has the same shoe size.
He used to be a vet.
After he was convicted, he lost his license.
He had been saying that...
he was going to kill Mr. Seo once he got out of prison.
Where is he now?
We can't locate where he was seen last.
My guess is that he's on the run.
And the drug found at Mr. Seo's home, succinylcholine.
Animal hospitals use this often when they put them to sleep.
Put them to sleep?
I got it. Find out more about him on your own.
Pardon?
- Why would I investigate on my own? - The murderer of this case...
is the same guy from the one 10 years ago.
We already specified a prime suspect.
What we need to focus on right now...
is directing our resources to prove the charge,
not adding a new suspect onto the list.
If you look, Jang Tae Joo fits the description of the murderer.
He clearly held a grudge too.
I'm telling you to take care of that at your own precinct.
- Gosh. - Goodness.
Are you ruling this out because it's coming from me?
- Hey, what's wrong with you? - Gosh.
I know that you were disappointed by my actions...
regarding the past incident.
However, please refrain from disturbing the investigation...
- based on your personal feelings. - Aren't you...
speaking for yourself?
- What did you say? - You lost your objectivity, not I.
When I stood before you as a murder suspect,
you evaluated based on the evidence.
At that time, I could understand you.
If I were in your shoes, I would've suspected the same.
- But this is wrong. - Hey, will you stop that?
- Watch what you're saying. - I didn't say anything wrong.
- I told you to stop. - Please calm down.
I get it.
Follow your lead...
with Jang Tae Joo.
I will. I will chase him until the end.
- Hey. Cha Soo Ho. - Stop it.
Soo Ho.
My gosh.
The suspect is exercising his right to remain silent and being stubborn.
In order for us to prove that he's guilty,
this evidence won't be sufficient.
Interview everyone related to this case,
and get their statements.
When you see him performing autopsies for homicides,
- you can tell that he's a lunatic. - How can you tell?
People who lack the ability to feel empathy are called sociopaths.
That's what he is.
He always says that he must become the assailant...
when he performs autopsies.
I just thought he was a crazy dude,
but after thinking back,
he's giving me the chills.
Dr. Baek isn't the type who would do such a thing.
He's a great doctor.
He takes care of Jin Dol the most diligently at the NFS.
According to our sources,
he screams, curses, abuses his authority,
and says insulting remarks. Is this true?
When we mess up, he does yell at us.
He often tells us to get out of the room.
When did you have the hardest time with him?
It's the hardest when I don't get to eat my meals.
During mealtime,
we always have a new case or an urgent autopsy.
Other medical examiners...
would work after finishing their meals,
but Dr. Baek isn't lenient.
Gosh, he's a great doctor. Goodness.
When he worked at the hospital, he was nice.
Although he was a perfectionist, he was still down-to-earth.
He was even in a relationship with a nurse named Han So Hee.
- But after she died... - You mean the car accident?
You know it too.
He proposed to her but got rejected.
So when he was driving in the heat of the moment,
he got into a car accident. That's what I heard.
How was his relationship with Dr. Kang Yong?
There was a rumor that Ms. Han rejected Dr. Baek...
because of Dr. Kang.
They were best friends.
Must I say more? After they fought,
Dr. Kang was found dead.
- Everything was Dr. Baek's fault. - Is that why he left the hospital?
No, it was the opposite.
He started performing surgeries like a mad man and caused a malpractice.
(Restricted Area)
It was because of his right hand which he injured from the accident.
That's why he was kicked out.
After Dr. Kang passed away,
there was a big scene because some of the medical supplies were gone.
Everyone kept it quiet and swept it under the rug.
What were the drugs that were gone?
They were succinylcholine...
and sodium pentothal.
(Halt at the stop line, and follow the guard's orders.)
Why did you come? I told you not to visit me.
How are you holding up there?
I'm fine.
You don't look too good, Dad.
It's not the time to worry about me.
I heard you refused to hire an attorney.
Why did you do that?
I caused this, Dad, so...
Until when will you punish yourself?
After that accident with that girl, So Hee,
I shouldn't have let you be like that.
- I should've done everything to... - No, Dad.
You must be strong, Beom. Okay?
You must get yourself together.
This is nothing. I cannot...
see my son crumble down like this.
Quit your job at the NFS, and come back to the hospital.
I got you an attorney. This will be over soon.
I see a bite mark on the left side of his neck.
"A bite mark on the left side".
And make a mold for his teeth.
What are you doing? Take the photos.
- And make a teeth mold too. - Oh, right. I'm sorry.
Get out.
Dr. Baek.
Hey, we're going to cut his body in half and split open his head.
Do it right. Otherwise, we are no better than psychopaths.
- Dr. Baek. - Put down your camera.
- Mr. Baek. - Get out.
Get out!
I'll get out. I'm leaving.
Where are you going in the middle of an autopsy?
What?
I... I'm sorry.
I'll take the photos again.
Darn it.
I just need 5cc of that. You can't even get me that?
Okay. I understand. Bye.
Dr. Pyo said no.
You saw those needle marks during the autopsy, right?
The drug is the decisive thing in this case.
We can only solve the mystery of those marks with his blood.
If you do that, can we prove Dr. Baek's innocence?
Trust me.
Gosh, it's not like I can just barge in.
I got an idea.
(Animal Hospital)
Hey, start the car.
He won't come even if we stayed here all day.
What?
If you were him,
would you come back to this place after you killed someone?
He's not coming.
- Then what should we do? - What do you think?
We need a change of plan.
Who's calling me?
(Stella)
- Why? Who is it? - Quiet.
Hi, Stella.
Lieutenant Cha Soo Ho of Gangdong Police Station.
I am here to get a blood sample...
of Deputy Seo Jeong Min for a toxic substance analysis.
We've decided to take up the analysis...
I need the evidence to investigate. Please hand it over immediately.
(Forensic Chemistry Analysis)
You probably wouldn't understand anyway. Just keep it cool.
What are you doing?
Professor Pyo, the police wants the analysis result.
Did you show them a warrant?
We were in a hurry, so we didn't get one.
Hello, Professor Pyo.
Are you from the NFS?
I'm Stella of Toxic Substances Division.
Where is the raw data of LC and MS?
Why do you want that?
We already finished analyzing everything.
Did you take the peripheral blood or from the heart?
I just...
Oh, my gosh.
Levels of toxic substances in blood can be 1.2 to 1.5 times higher...
in blood taken from the heart compared to peripheral blood.
The drug bottle was already found on the scene so...
How can you be sure that he was only injected with that drug?
Do you analyze things after you decide on the result?
Did you conduct a quantitative analysis of the toxic substance...
and the metabolome?
Why do we need to conduct a quantitative analysis?
We can only see if he was injected before or after his death...
after we see the ratio of the substance and the metabolome.
Give me the blood sample. I will analyze this myself.
That is impossible.
Come back with a warrant.
The suspect refuses to make any kind of statement.
He is not being cooperative.
We conduct this search and seizure to find out his true nature.
You must not leave out even the smallest evidence.
Let us go.
- This way. - Yes, sir.
What are these?
Does he think he's Rambo or something?
Let us begin.
It's as if he's a terrorist.
This is quite scary.
This is just his house. It's not like there's a ghost here.
What are those?
What? Why?
My goodness. I'm sorry.
- That was shocking. - Why did you touch that?
- My gosh. - What is this?
Do you know why I shoot?
I'm proving to myself that my hands are fine.
It's not a house of someone who has a normal thought process.
He said he obsesses over shooting...
because of the wound on his right hand.
Wound?
Normal people would play the piano or get rehabilitation.
A woman's ring.
He proposed to her but got rejected.
So when he was driving in the heat of the moment,
he got into a car accident. That's what I heard.
He saw the obstacle in the middle of the road,
but he didn't avoid it.
And the damage was...
focused on the passenger's seat.
Prosecutor Kang.
Take a look at this.
Succinylcholine and pentothal sodium.
The drugs that killed Mr. Seo.
We found the decisive evidence.
- There he is. - They're coming.
- Stop right here. - Back off.
Please say something.
- Say something. - Why did you kill him?
What's the reason?
- Did you use your knowledge? - Say something.
- Say something. - Say a word.
Over here.
(Victim)
At first, they probably talked.
Then you probably began to quarrel.
Take a seat.
You knew about Mr. Seo and Ms. Han's relationship, right?
You flipped out after you saw this picture.
You didn't want anyone to find out about your crime from 10 years ago,
so you decided to kill him.
You pushed the victim. When he became defenseless,
you took out a syringe.
How did you inject him?
Say it.
How did you do it?
Tell me!
Prosecutor Kang, calm down.
Why? Do you feel guilty now that you see this again?
Show me.
How did you inject this into him? Show me how you did it!
Why? Why did my brother and Jeong Min have to die,
not you?
If you weren't there 10 years ago,
my brother, So Hee, and the baby in her womb...
would've lived happily ever after.
Yes, I did it.
Happy now?
So stop it.
Yes. Everything is over.
I'll indict him as soon as we get the autopsy analysis.
This way.
This is Baek Beom.
I'm Deputy Seo Jeong Min of Seoul Eastern District.
- And? - Do you know what day it is?
It's Ms. Han So Hee's birthday.
- How do you know her birthday? - Because it's my birthday too.
Who are you?
(Partners for Justice)
(Suppressed damage)
(Damage caused while attempting to suppress someone's actions)
(Hangook University)
Hi.
(Hangook University)
(Autopsy Report)
(Death: Suicide)
Professor.
What's this? Suicide?
Yes.
That is the conclusion my department has reached.
He was pushed down, injected, and murdered.
No.
The order's wrong.
He was injected with sodium pentothal and succinylcholine.
His muscles relaxed, and he lost control of his body.
He fell over, and that caused the bleeding,
the skull fracture, and the subdural hemorrhage.
That's the most reasonable conclusion.
But... That's not...
The injection marks showed no signs...
of others' involvement. And on the syringe,
we only found the fingerprints of the victim himself.
Mr. Seo would've never killed himself.
Prosecutor Kang.
I know how you feel,
- but these are the facts. - No, sir.
Something's wrong. Baek Beom did it!
- Prosecutor Kang. - My brother and then now.
You were wrong both times.
I will reveal the truth.
Wait. Prosecutor Kang.
- Prosecutor Kang. - Oh dear.
Why would Mr. Seo suddenly kill himself?
I know. It doesn't make any sense.
There were no hesitation marks.
- What? - What?
(Marks of a suicide attempt)
People who kill themselves sometimes leave hesitation marks.
There were exactly two injection marks on Mr. Seo's arm,
and he's no doctor.
It might not be suicide.
Only two companies supply the animal hospitals...
with succinylcholine.
The vet that Jang Tae Joo worked at...
got their supply from here.
Myungsung Pharmaceuticals
(Myungsung Pharmaceuticals)
Is anyone in?
Yes, hello.
Hello, we're from Gangdong Police Station.
Do you supply succinylcholine?
Yes, we do. What is this about?
Someone was killed with the drug.
Did anyone steal your products?
Oh, right.
A few vials did go missing a few days ago.
Really? Could we check the security footage from that day?
Sure.
It's Jang Tae Joo.
Is that succinylcholine?
- Yes. - How many vials went missing?
I counted three.
Three vials?
Cause of death was asphyxia due to a succinylcholine injection.
Type of death...
was suicide.
We will release you soon.
The day of the reenactment...
was the first time you'd been to that place, right?
Why did you confess?
To take it all on yourself?
- Don't write a novel. - No, I'll write one today.
You didn't do it.
But you think it's all your fault.
That's why...
you turned into an ill-tempered man who tortures himself.
Han So Hee and Kang Yong...
used to mean a lot to you.
If there's a misunderstanding, explain it.
Revealing the truth behind a death.
That's your specialty.
With the way things are,
we'll close this case as suicide.
Wait.
Do me a favor.
(Autopsy Report)
(Noticeable trauma)
A needle that went straight into the vein.
Short fingernails.
Stop it and go to sleep.
I'd like to make a call.
(Prosecutor's Office)
Did the suicide conclusion...
make you want to recant your confession?
You can't rule out murder.
- What? - Redo the autopsy.
- I can prove it. - If you do that,
- it works against you. - I don't care.
Why? You'll pretend to do an autopsy...
and destroy evidence?
Quit writing a novel.
- What are you up to? - Think what you will.
But an autopsy must be done.
(Seoul Eastern District Prosecutor's Office)
Dr. Baek!
Dr. Baek.
- What? - You're performing the autopsy?
What are you doing?
- Get my uniform. - Okay.
- The body. - It's not here yet.
Where is it?
Hang on, let's check.
Number one, Seo Jeong Min.
They started already. This is bad.
Darn it. Mister, mister.
We need help.
You can't cremate number one just yet.
Can you stop the procedure?
- What? - We're from...
the Prosecutors' Office. Please help.
Arrest him again.
The body...
was cremated.
- What? - The process has begun.
The body's gone.
(Partners for Justice)
- It's gone. - Bring the body.
It's all over.
It's not over yet.
You can still do an autopsy on a piece.
- Do it. - Prepare the autopsy.
Do you have a conclusion?
Type of death, homicide.
Someone suspicious lurked around Mr. Seo.
There's another target other than Mr. Seo.
It was Jang Tae Joo?
I'll list up everyone he could have grudges on.
There could be more murders?
He's a serial killer.
Concentrate all your efforts to apprehend Jang Tae Joo.
Prosecutor Kang, I have the next target.
What?
Dr. Baek, have a look at this.