There's the same amount of evidence pointing the finger towards Crafard as Oswald, Crafard fleeing Dallas the morning after, admitting he was once employed as a mob hitman ( Tippit shooting was a professional hit) 3 to the chest and 1 to the head to finish him off mafia style. Always thought the head shot was a massive clue, if it was Oswald he'd have been happy nullifying Tippit with the 3 shots to aid him get away, absolutely no need for the execution shot unless he was determined that Tippit could never identify him ( hardly the work of a crazed assassin hurriedly fleeing the scene. I believe Tippit's job was to kill the fleeing Oswald, once this didn't happen the plan was quickly put in place to kill Tippit leaving conveniently Oswald's wallet behind at the scene. Tippit's bizarre behaviour beforehand was testament to a guy pretty much out of control pulling cars over like a maniac searching them etc, making rash calls the works. Tippit was knee deep in this conspiracy 100%.