Utah's gentleman bruiser, Don Fullmer, 72, who fought some of the world's most famous boxers and came within a single fight of a world title himself, died peacefully Saturday morning surrounded by the prize he valued most — his family. Fullmer and his boxing brothers, Gene, the oldest and a world middle weight champion in 1957, and Jay, second oldest who left the sport with a 20-5-2 record after an eye injury, put Utah on the international boxing stage in the 1950s and '60s.