I had literally just pulled up a clip of the Navarette knockout on my phone last night, some rabbit hole from a documentary I was reading about. 56 is no age at all. Heart attack, according to his family. Genuinely stunned by this.
Their story
William Magahin, known in the ring as The Black Mamba, was a Filipino professional boxer who held the World Boxing Federation welterweight title in 1995. An Amerasian southpaw raised in Iloilo City, he became one of the better known Visayan fighters of his generation after a highlight knockout of former…
William Magahin, known in the ring as The Black Mamba, was a Filipino professional boxer who held the World Boxing Federation welterweight title in 1995. An Amerasian southpaw raised in Iloilo City, he became one of the better known Visayan fighters of his generation after a highlight knockout of former WBC junior lightweight champion Rolando Navarette and a home-city world title win over Australian Jeff Malcolm. He died in Iloilo City on 25 September 2026 at the age of 56.
Magahin was born on 25 July 1970. Contemporary accounts describe him as the son of an American serviceman and a Filipino mother. He grew up in Olongapo City and was later adopted by Negros-born businessman Roland Magahin, who settled the family in Iloilo City. Under the Amateur Boxing Association of the Philippines he represented the country at the 4th World Junior Championships in Havana in 1987. He turned professional on 11 July 1989 with a knockout of Eric Togana in Manila, and within a year had won the Philippine Games and Amusement Board lightweight title.
His breakthrough came on 31 July 1991 at the Araneta Coliseum, when he stopped Navarette in the sixth round and sent the former world champion into retirement. That win took him to Tokyo, where he was stopped by future WBC lightweight champion Miguel Angel Gonzalez. Magahin rebuilt at home and on 25 March 1995, at the Iloilo Sports Complex, won the vacant WBF welterweight title by unanimous decision over Jeff Malcolm. He defended the belt against Erwin Villaver in Manila and Brad Mogeridge in Bacolod before losing it on points to Suwito Lagola in Medan, Indonesia, in October 1995. A bid to regain the crown ended when Jaime Lerma stopped him in Manila on 20 January 1996. Magahin retired with a professional record of 18 wins, 7 losses and 1 draw, with 12 knockouts, according to contemporary fight records.
After boxing he struggled. Sports reporting from the 2000s recorded periods of drug use, work as a parking attendant and a taxi driver, and a prison term in Quezon City after a robbery conviction. The Games and Amusement Board later gave him modest welfare assistance and listed him among Filipino boxers recognised for past achievement. In his final years he was again living in Iloilo and driving a taxi. Fellow former champion Revero Santillan said Magahin visited his training camp in Jaro five days before he died and spoke of needing more sleep because of his driving work.
News of Magahin's death was confirmed through his former wife Agnes, who posted a farewell on 25 September 2026, and through Santillan. Columnist Alex P. Vidal published a career farewell in the Daily Guardian the next day. Local reports spoke of an apparent heart attack; no detailed medical cause was set out in the main press account. Philippine boxing writers remembered him as a southpaw world champion from Iloilo who briefly stood among the country's titled fighters in the mid-1990s.
Biography adapted from Daily Guardian farewell by Alex P. Vidal (26 September 2026); PhilBoxing and Philippine Star sports features; Boxerlist / contemporary fight records.

same, saw it trending and thought it had to be a mistake