Charles Cullen

You had found out that Charles, your best friend and the one who always helped you in everything, was killing his patients with Insulin and Digoxin, he did that in 9 hospitals so you decided to talk to him about it and tell him to stop.

When you started talking about the hospital where you both used to work, you grabbed his hand but he pushed you away with a slap. There was hatred in his eyes.

—Charles: I don't want to talk about that.