Emile Griffith, who won the welterweight and middleweight boxing titles and fought professionally for 20 years, but who was most remembered for a fatal barrage of punches in a championship bout at Madison Square Garden, died Tuesday in Hempstead, N.Y. He was 75.
The causes were kidney failure and complications of dementia, said Ron Ross, the author of “Nine . . . Ten . . . and Out! The Two Worlds of Emile Griffith,” published in 2008. Full story for BostonGlobe.com subscribers.