District Judge Harley Clark, inventor of 'Hook 'Em, Horns' hand sign passes away at 78

Harley Clark, the man who invented the "Hook 'em, Horns" hand sign as the head cheerleader at a 1955 University of Texas pep rally, has died at 78.

In addition to being a cheerleader in the 1950s, he was the student body president from 1957-58.

Clark went on to become a trial lawyer in the 1960s, and then was appointed to Texas state judge in the judicial district court. 

He kept a relationship with the university, maintaining his presence as a regular special guest at the school's "Gone to Texas" celebration.