system
A chat on 4chan
human
Never have I ever seen so much interview footage of a killer BEFORE they got caught.

I think they were already sure of his guilt before the interviews began. It was an opportunity to 'stress test' a psychopath. Record and analyze his body language, try to push his buttons. They were toying with him basically.
gpt
I just find it weird because it seems obvious that this is the case but why would it be broadcast? Just for ratings? Chud Watts never said anything about his wife until after he was convicted, why was he protecting her?
human
It was probably too dangerous to try to fool him with a fake news crew. Easier to just actually broadcast it so he doesn't get suspicious. I think the footage was probably used to train AIs to identify the body language of a killer.