If you believe this link it would have been 2000 as he was a sophomore supposedly in 2001.
But I would believe it would have been more likely 1999 or even as early as 1998. 20 is a little old to be a sophomore.
http://query.nytimes.com/gst/fullpage.html?res=9C05E6DD133EF93AA25753C1A9679C8B63&sec=&spon=&pagewanted=all
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