To me, one of the more difficult things to believe in this story is that Hernandez was 27 years old, a young man, even young by professional athlete standards. It's not just the rise and fall, but how quickly everything happened.
Hernandez was drafted in 2010 at age 20. He made an NFL roster, caught a TD in a Super Bowl and a signed a big contract. This was stuff that everyone who aspires to become an NFL player dreams about. By the summer of 2013, though, he was arrested for murder and would spend the rest of his life in jail.
He had the talent to get to a point where he had it made, relatively speaking. Then he made decisions that ruined everything that he accomplished, ended at least one other person's life (and, likely, two others) and negatively impacted of his family and his victim's families. Just a sad, terrible situation.