There are some pretty creepy people out there. The sort of people that just hearing about them gives you the creeps and makes you worry for your own safety, even if they are on the other side of the world. Rather than totally freak you out and just tell you the worst criminals around, I’m going to tell you about the fifteen of the most dangerous people that are, thankfully, locked away in maximum security prison right now. That way you can hear about their sick sadistic ways and still be able to sleep at night. The only thing you really need to be afraid of is making a mess of your life and having to be sent to live with all those evil criminals. Thankfully, I don’t think this is too great an issue. Get ready to hear about people that seemed to enjoy inflicting pain on helpless people, like Ivan Milat from Australia, who liked to take advantage of backpackers and always left weird clues linking him as the killer; or Dwight York who was known as an artist in music and a writer but also proved to be a man that molested hundreds of children. One thing that seems consistent with many of these hardcore criminals is that they started off small and they started off young, getting in trouble at the age of 17-19 for little things like theft.