Character name: Jack Shephard
There was a famous British highwayman (one who robbed vehicles) in the 1700s named 'Jack Sheppard'. So popular was he when he was alive that his robberies were published in the newspapers & pamphlets after he committed them. He was viewed to be such a Robin-Hood-like hero that well into the Twentieth Century stories were still being written about him and no less than 9 theatrical plays were performed to the public. In fact, when author Harrison Ainsworth published a book about him in 1839, it outsold Dickens' 'Oliver Twist'.
Literary Source: "100 Most Infamous Criminals" by Jo Durden Smith