Born 5 August 1964. Died 4 May 2012
Adam Nathaniel Yauch (pronounced; August 5, 1964 – May 4, 2012) was an American rapper, musician, film director, and human rights activist. He was best known as a founding member of the hip hop group Beastie Boys. He was frequently known by his stage name, MCA, and sometimes worked under the pseudonym Nathanial Hörnblowér.