evidence: Marvelous Marvin Hagler, who ruled boxing as the middleweight champion from 1980 until 1987, defending his title 12 times until he lost to Sugar Ray Leonard in a hotly contested split decision, died last Saturday. He was 66. Hagler’s death was announced by his wife, Kay Hagler, on the verified Facebook page of the Marvelous Marvin Hagler Fan Club. She said he had died unexpectedly at his home in New Hampshire. [...] Hagler was born Marvin Nathaniel Hagler on May 23, 1954. He said he later had his name legally changed to Marvelous Marvin Hagler.