How do you catch a killer if all of the evidence points to you?  And also, you really are the killer and you don’t want to go to jail?  

(Answer: Just don’t try to catch the killer.  Or, if you do, when you are handcuffing yourself, put one of the bracelets on and then sort of prop the other one open and gently put your hand in so that when it closes, all you have to do is press it against a wall or something to tighten it.)