"Thank you for your help," Malcolm told him, with a little wave, as they left. He was somehow tucked between Art and Raylan and missed the sneer in response.

Back in the car, Malcolm leaned between the front seats eagerly.

"Whoever his prison friend is, it's someone he feels safe confiding in. It has to be someone famous enough that their crimes are known. Quarles felt a kinship with him - enough to write a letter to a stranger - so either this person committed crimes against children, or else their crimes are so deranged that they're just as bad. And this person is in prison in New York. Granted it's one of the twisted crime capitals of the world, but that should help narrow it down."