I think that it's Kellen, not Kevin. And to be really super, duper technical, it's Kellen Winslow Jr.; there's a plain Kellen Winslow who was also a football player, but from the late 1970s and early 1980s.
He's the moderately stable gentlemen who went off on the "I'm a soldier" tirade a couple of years back when he was at UM - a fantastic athlete, but perhaps a little bit full of himself. He's also apparently not the sharpest tool in the shed, scoring a 12 on the Wonderlic (out of 50) at the NFL combine. While not an IQ test, outcomes tend to be statistically correlated with IQ, although there are other factors, and obvious 1st round draft choices probably don't take it entirely seriously.
cdg