If he actually did it, he should rot in jail like any other murderer. If it can be proven that he didn’t, he didn’t he should walk free. That’s how it should be. That is how civilized people work.

I think you got it a little mixed up. The state needs to have it proven that he did in fact commit that murder, and not leave any doubt about it. It’s really not his job to prove anything, let alone that you can’t prove innocence in a lot of cases.

I’ve never heard of Fight club being a red flag. Probably it could be one if you’re overly obsessed with the movie, and express it with a focus on the toxic masculine parts of the movie, but in that case the issue is you being a red flag.