Gilliam was a great college player. He was great that snowy day in Norman but missed the potential game-winning shot when he somehow was left wide open at the foul line. A teammate (Jarvis Basnight) tried to dunk the rebound instead of just tipping it in, and he missed ( :clap :woot ). When that horn sounded and the ball on the floor, the place just went nuts.
By the way, I have a good black-and-white photo at home of Choo Kennedy's turnaround J in the lane that proved to be the winning basket with about 12 seconds left in the game. Mike Treps did the public-address back then and yelled, "Choo! Choo!"
That remains to this day the greatest college basketball game I've seen in person, anywhere.