Former WWE wrestlers Ox Baker and Sean O'Haire passed away in 2014. Warrior, who was formerly known as James Brian Hellwig and performed as "The Ultimate Warrior," passed away mere days after his induction into the WWE Hall of Fame and an appearance on Monday Night Raw.
Just prior to his death, Warrior returned to the WWE to make appearances for the company. He also made an appearance at Wrestlemania 30 not long before his death.
Sean O'Haire wrestled for WCW and the WWE in the early 2000s. Ox Baker wrestled for the WWWF (the progenitor of the WWE) in the 1960s.