Wangila died from injuries received in a 1994 fight with David Gonzales in Las Vegas. Wangila had been beaten to such a bad condition that the referee Joe Cortez stopped the match in favour of Gonzales, despite Wangila's fierce protests. After the match, Wangila lapsed into a coma in his dressing room. He was pronounced dead thirty-six hours later.
Wangila had converted from Christianity to Islam while in the United States, and his will requested that he be buried according to the wishes of his Muslim wife. Napunyi Wangila, married Queen Noble, May 16, 1992 until his death. The will was challenged by Wangila's family in Kenya, but a judge ruled in favor of a Muslim burial.