First of all every sex offender and rapist should be shot dead. Secondly I would say it's the cops that are at fault. They know this guy is an offender and it seems like they expect him to live quietly and sex offenderless......ya. Anyways, what they should do if killing them is too extreme, at least keep their activity monitored at all times. If law enforcement did this in the first place, sex offenders would not have the chance to do all of these horrible things that they do.