The National Museum of Health and Medicine could hold the key to answering a controversy that's nearly 150 years old: Is President Lincoln's assassin actually buried in the historic Green Mount Cemetery in Baltimore?
According to the official government report, John Wilkes Booth was killed on April 26, 1865, after being surrounded in a barn in Port Royal, Va., 12 days after he shot and killed Lincoln. His body was eventually returned to the Booth family, who buried him in an unmarked grave in the family plot at Green Mount in 1869. But since then, theories have circulated that the man shot in that barn was not Booth and that he had escaped justice. One theory suggests he lived until 1903, when he supposedly committed suicide in Oklahoma.