Shot 06/29/2011.## Community newspaper Crossville Chronicle reports a young U.S. Marine on what is said to be a third tour of duty in the war zones of the Middle East has been seriously injured by an improvised explosive device in Afghanistan, according to family members. Christopher Michael Hancock, a Cumberland County High School graduate who joined the Marines upon graduation and has served two tours in Iraq, was two weeks into his first tour of duty in Afghanistan when he was seriously wounded by the explosive device.##