(FOXNEWS) — Rubin “Hurricane” Carter, the boxer whose wrongful murder conviction became an international symbol of racial injustice, died Sunday. He was 76.

He had been stricken with prostate cancer in Toronto, the New Jersey native’s adopted home. John Artis, a longtime friend and caregiver, told the Canadian Press that Carter died in his sleep.

Carter spent 19 years in prison for three murders at a tavern in Paterson, N.J., in 1966. He was convicted alongside Artis in 1967 and again in a new trial in 1976.

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