Visitors to the former Carbon County Prison, one of the area's top tourists attractions, are drawn to the smudged handprint on the wall of Cell 17.
Was it really put there by a Molly Maguire as an eternal sign of his innocence, as he left the cell to be hanged on the gallows in the prison cellblock? they ask.
Now, the legendary handprint has captured the attention of the British Broadcasting Company, which filmed a documentary in the jail this week.
The segment will be aired in England on the "Mysteries" program.