 There, his corpse was taken aboard the ironclad USS "Montauk" and brought to the Washington Navy Yard for identification and an autopsy.The body was identified there as Booth's by more than ten people who knew him.Among the identifying features used to make sure that the man that was killed was Booth was a tattoo on his left hand with his initials J.W.B., and a distinct scar on the back of his neck.