Dr. Anthony Ivo, Oliver and others in “Unfinished Business”

It's harder than it looks, isn't it? Killing an unarmed man.

Oliver

It seemed pretty easy when you murdered Shado.

I didn't murder her, Oliver.

Oliver

Ivo, you shot her in the head.

I gave you a choice! You chose Sara. You blame me, but that's because you can't face your own guilt. I loaded the bullets, yes, I pulled the trigger, but you... you aimed the gun. And you hold yourself responsible. Don't you?

Oliver

Yes. But that doesn't mean I won't kill you.