Cheri Brown, left, talks to a passerby making a donation to Guitars Not Guns, a nonprofit organization that provides free after-school guitar lessons to underprivileged children, inside the group's tent at the Columbia Pike Blues Festival. The local chapter of Guitars Not Guns was started in 2006 by Skip Chaples, the former Boy Scout den leader of Brown's late son, Aaron, who was killed in February 2006.