A rich abuser was put in prison. He was the subject of massive contempt from the general public. He knew he was screwed and wasn’t going to get out of this; he was going to get dragged through a grueling trial. He was never going to get out again, was never going to be able to molest young girls again, and that, apparently, was a part of his life that was extremely important to him. He tried to kill himself once before.
He finally successfully committed suicide. The cops didn’t interfere, they aren’t as competent as you might think from TV cop shows.
I find everything in my description above sufficient explanation of the event. If you want to claim something more nefarious at play, you’ll have to bring additional evidence to bear, and most of us do not have access to any deeper evidence than what we see reported in the news, and if you want to claim that there was an assassin hired to silence him, or that a body double was killed and the man is now getting plastic surgery and living in Uzbekistan, that’s called a conspiracy theory. It’s garbage.
If you want to claim there’s more to this than a despondent man outsmarting a penal system that doesn’t give a damn about the people under its responsibility, I’m going to roll my eyes at the absurdity, unless you bring new evidence.
By the way, plausibility is not evidence, nor is your conviction that someone is a villain.