I expect it was a young relative or maybe a friend's kid. But add in that Richardson apparently didn't tell the Jets about his arrest. They first heard the news when the story broke...on a day when Richardson was telling reporters all about how he was taking full responsibility for his actions.
You really believe drinking and driving is a common practice? Nobody's being holier than thou. What people are acknowledging is that a guy who was already going to have a tough time making the roster did something really stupid and probably cost himself what little shot he had (which, by the way, is nobody's fault but his own). The whole "it should be legal" argument doesn't mean jack s--t. It isn't, and it's against the league rules, and he knew that but he stupidly chose to do it anyway. Now he suffers whatever consequences come his way, and with no one but himself to blame.