B2S13C10

Victim
* Ota Hideko
Suspects
* Hamamoto Hideko
* Judah Cooley
* Briella Kim
* Case Dorsey
* Alfie Lancaster
Killer
* Case Dorsey
Motive
Aaren: Agent Dorsey?! YOU killed Ota Hideko?! 
Case: Of course I did!
Aaren: It all makes sense now!
Aaren: You...you killed her to stop the transaction from happening and prevent her from getting her hands on the weapon!
Aaren: It must be at your base, right?
Case: What have I told you about coming up with your own motives? It never works out well, does it?
Aaren: What?!
Case: That's not even remotely close to why I killed Hideko.
Case: I wanted the power!
Aaren: What are you talking about?!
Case: I wanted the weapon! I wanted its power, its strength...all to myself!
Case: Of course I still remained loyal to the CIA until I overheard Mackenzie confessing to you when she mentioned that superweapon.
Case: So I took her in and grilled her about it. She admitted to being with LanCorp, but that's all I got out of her.
Case: I didn't need her anymore and I knew she'd tell everyone, so I killed her!
Aaren: But if you wanted the weapon...why did you help us?!
Case: I knew you would lead me straight to the superweapon. You were hot on its trail. I knew that I just needed to follow you, find out who the buyer was, kill them, and take the weapon.
Aaren: Where is the weapon, Dorsey?
Case: You'll never find it-
BANG!
Case falls to the ground
Alfie holding out his gun: You moron! You ruined EVERYTHING!
Aaren: Alfie?!
Alfie: THAT BASTARD KILLED HIDEKO!
Aaren: And you're under arrest!