Staff Sgt. Robert Bales in 2011 at Fort Irwin, Calif.
Staff Sgt. Robert Bales in 2011 at Fort Irwin, Calif. Spc. Ryan Hallock/AP
Staff Sgt. Robert Bales in 2011 at Fort Irwin, Calif. Spc. Ryan Hallock/AP

Only one shooter likely in Kandahar killings, Afghan investigator says

April 03, 2012 4:21 PM