Samuel Holmes Sheppard ((1923-12-29)December 29, 1923 – (1970-04-06)April 6, 1970) was an American osteopath. He was convicted of the 1954 murder of his pregnant wife, Marilyn Reese Sheppard, but the conviction was eventually overturned by the U.S. Supreme Court, which cited a "carnival atmosphere" at the trial. Sheppard was acquitted at a retrial in 1966.