Conversation so far:
What happened in 78 with Bruno Sammartino?
After his second reign ended, Bruno Sammartino leisurely toured the U.S. and the world.
What did Bruno Sammartino do in his later career?
On January 22, 1980, Bruno Sammartino's former student Larry Zbyszko turned on him at the World Wrestling Federation's Championship Wrestling show.
How did Zbyszko turn on Bruno Sammartino at the World Wrestling Federation's Championship Wrestling show?
Zbyszko became frustrated with his inability to shed his label as Bruno Sammartino's protégé. He challenged Sammartino to an exhibition match
What happened after Zbyszko turned on Bruno Sammartino?
Bruno Sammartino, shocked and hurt by Zbyszko's betrayal, vowed to make Zbyszko pay dearly. Their feud culminated on August 9, 1980, in front of 36,295 fans at Shea Stadium.

Question: How did he make him pay?
Self-contained rewrite: How did Bruno Sammartino make Zbyszko pay?