John "The Beast" Mugabi (born March 4, 1960) is a former boxer and world Jr. Middleweight champion. A world traveller, Mugabi was a part of an early 1980s Jr. Middleweight and Middleweight division scene that also included Marvin Hagler, Thomas Hearns, Wilfredo Benitez, Davey Moore and Roberto Duran, and, together with the aforementioned world champions, he was a part of an era that many boxing fans rank as one of the most exciting times ever in the Jr. Middleweight and Middleweight divisions. His nickname was The Beast.

Mugabi was born in Kampala, Uganda, where he started to box. He won a silver medal at the 1980 Summer Olympics in Moscow.
Source : Wikipedia