but dennis andrews says that didn't improve morale. >> andrews: he doesn't address the situations ofstaff at the jail, who are being attacked daily by detainees. he presumes them innocent, but he doesn't presume his staff innocent. >> stahl: he presumes his staff guilty? >> andrews: yes. >> stahl: it can't be good if they think that you're not on their side? >> dart: you know, i become puzzled when they think i'm not on their side. it is the most difficult job. and you start with that, and then you're dealing with mentally ill folks. so they've been asked to do all sorts of things that they didn't sign up for, and i am outrageously sympathetic to that. >> stahl: what sheriff dart can't tell us yet is whether recidivism rates are coming down. on any given day, he says he releases roughly 200 people to the streets, but he accepts another 200-- some still the old familiar faces. to improve the chances they won't return, again, he's introduced activities like chess lessons. >> dart: people said, you know, "your chess program, you know, how is that work--" i said, "you know what? one of t

his members were furious. >> dennis andrews: tng was, he didn't release the videos of the detaineesg the officers. you can't release a small segment of something happening, without releasing a tape of how you got from point a to point b. >> stahl: does the public have a right to see those men beating the prisoners? >> dart: if we aren't releasing that information, then it furthers the public's feeling that law enforcement is covering things up, and that we're hiding things, and we don't have anything to hide. we have good people here, is the majority. but we have some people that don't. and we can't shy from that, because it's what poisons the well with the public. >> stahl: after the criticism, sheriff dart did release videos of inmates attacking staff. but dennis andrews says that didn't improve morale. >> andrews: he doesn't address the situations of his own staff at the jail, who are being attacked daily by detainees. he presumes them innocent, but he doesn't presume his staff innocent. >> stahl: he presumes his staff guilty? >> andrews: yes. >> stahl: it can't be good if they t

dennis and aaron the way they intertwined, it was magic in my eyes. >> reporter: magic that didn't last, ending when hernandez was just 16-years-old. brad mcmillan and andrewale were on his basketball team. >> i walked in, he says, dennis has passed away. >> reporter: dennis hernandez, aaron's father, his anchor died unexpectedly after a routine hernia surgery. >> he felt uncomfortable to see him so hurt. >> clearly, at 16-years-old, losing your father, it would be very easy to fall into the lifestyle of following people that don't help you make the best choices. >> reporter: one choice he made was to tattoo some of his dad's advice on his arms. >> this is a quote my father told me, if it is to be, it is up to me. it basically says, whatever i want my life to be, it's up to me to make that it way. >> reporter: what he wanted to be is an nfl football star. so in january of 2007, he cut his high school senior year in half and headed to the university of florida, joining star quarterback tim tebow. by april, still hong before the fwator's season opener -- gator's season opener, the rookie teen loses his cool at this popular off campus restaurant. there is an