The thing that got to him about prison was all the crying. He’d hear it at night, that unmistakable sound of human sobbing that came drifting through the walls. Guys would be in their cells, lying on their mattresses, maybe thinking about their lives and what was left of them. Tough guys, acting hard all day, but then in the night every man was alone with himself. Cue the crying. Wilfredo Santiago is a grown man himself now with a life and a burgeoning MMA career, but back then was just a boy, a teenager behind bars with adults in a Massachusetts state prison