What Evidence Is There That This Wasn't Hart?

The community was in an uproar that this was an absolute set up. With the previous rapes that he had been convicted of, eventually admitted to the rape of two pregnant women, why claim innocence in this case? He went from raping, kidnapping and raping pregnant adults to children. That doesn't make any sense. Unless he's just like some crazy, unlike, unpreferential sex offender, i don't know that that seems weird. But fine. If any of this evidence is real, that it wasn't heard, who could be another possible suspect?