[3] He was a crowd favorite, hitting a game-winning three-pointer to defeat the University of Louisville on February 16, 1993, in Freedom Hall.

That Marquette team was led by future NBA players Dwyane Wade and Travis Diener.

Prior to his hiring, Travis Diener recommended Horn to the then-WKU athletic director Wood Selig.

He led the Hilltoppers to the Sweet 16, the third round of the 2008 NCAA men's basketball tournament,[9] a tournament run that included one of the most celebrated buzzer beaters in college basketball history, a three-pointer by Ty Rogers against Drake in overtime.

[11] On April 1, 2008, Horn was hired as the new men's coach at the University of South Carolina, replacing Dave Odom.