Warrior (born James Brian Hellwig) was an American professional wrestler, who wrestled most famously under the ring name the Ultimate Warrior. He was best known for his appearances in the World Wrestling Federation (WWF, now WWE) from 1987 to 1996, as well as his stint in World Championship Wrestling (WCW) in 1998. Warrior died last week, on April 8, 2014, at the age of 54. Over the preceding three days he had been inducted into the WWE Hall of Fame, appeared at WrestleMania XXX and made his final public appearance on Raw.
Note: I never followed the WWF closely, but I do remember junior-high classmates discussing rumors of how the Ultimate Warrior had died in 1991, and was secretly being portrayed by a new wrestler—thus the drastic change in his appearance (shorter, blonder hair and a smaller physique). It seems he was always Hellwig though. Shrug.