You are mis-remembering...
The CB...forgot his name, was supposed to be in man coverage and instead played a short zone. It was O'Hanlon who ran down and caught the VT receiver, preventing a TD on that play. Yes the Hokies still ended up scoring on the next set of downs, but that's on the entire defense, not O'Hanlon alone.
So what am I still salty about? Lots of great things have already been mentioned, however, what still galls me today is just how openly crooked Big 12 referees were. Steve Usacheck, Greg Burke...those two in particular were some of the most anti-Nebraska, crooked a$$, mo-fos. They, and their crews, would go out of their way to penalize the Huskers. They'd flag Nebraska for the most ticky-tack things. The problem was, penalties they called against Nebraska were never called on any other team. Nebraska was practically guaranteed to get called for pass interference if our DB merely touched the receiver. If I recall, the screw job we received during the Texas A&M game was because we filed an official complaint against Greg Burke and his crooked crew.