I'm sure by now you've heard of this Dean Schwartzmiller character.
Investigators say he's been keeping a journal of the children he molested over the years. A smart neighbor became suspicious of him when he gave her young sons treats and it's a good thing too. Turns out he never registers anywhere as a sex offender as required by Megan's Law. So he's been moving from state to state for years molesting children along the way.
It's just so darn disturbing.