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Proof was an American rapper. He was born DeShaun Dupree Holton on April 2, 1973, in Detroit, Michigan. Proof was a member of the rap group D12, which also included Eminem, Bizarre, Kuniva, Swift, and Royce da 5'9". Proof died on April 11, 2006, at the age of 32, after being shot and killed in a bar in Detroit.