(Ian Gavan/Getty Images)Jackson Browne is headlining a concert to publicize the plight of Leonard Peltier. The show, called Bring Leonard Peltier Home, will take place December 14th at New York’s Beacon Theater. It will be hosted by Pete Seeger and Harry Belefonte, and feature a set by Bruce Cockburn.Peltier has been serving two life terms in prison for the shooting of two FBI agents on the Pine Ridge Indian Reservation in South Dakota in 1975, but his supporters have long proclaimed his innocence.