Not familiar with him, but looking at the videos, he was a wild one, throwing guys (or himself) out of the ring, onto floors, metal box springs or drywalls. Boy, couldn’t he look like an evil villain when he wanted to? Scowling, with deep vertical lines on his forehead.
Seems that he had gymnastic training along with wrestling.
No indication of how he died, and no expressions of people being surprised. Maybe it was a longtime, widely known ailment, i.e. heart disease or cancer.