It's not every day that you see Johnny Cash sing "Folsom Prison Blues" from 20 feet away.

FORBES: Magazine Article

His most famous albums included Folsom Prison Blues, a 1968 live album recorded at a jail concert.

BBC: NEWS | Entertainment | Country legend Cash dies

But he must have known that Cash sang "I shot a man in Reno, just to watch him die" in Folsom Prison Blues.

BBC: NEWS | UK | Magazine | Is there violence in Cameron's CD collection?