set up. >> who setting you up? >> i'm so stupid. >> the prosecutor didn't believe weldon have been framed exactly but set up? in a way, yes. >> remember those horrible allegations of abuse diana made against greg? that he molested her and their son? she believed that diana fabricated them. >> all the therapists, the physicians, everyone that was involved made the determination that there was no truth to it. when the court system didn't believe her, then she decided to come up with a way to have him killed. >> and the prosecutor said, that's where weldon cayman. a self styled protector, a man prime to react to the exact type of allegations diana was making. >> oh, god. stop. >> remember what weldon set on dateline when he heard the crystals recording of her husband abuse? >> i really wanted to go and kill him. >> the prosecutor believe diana