FILE - This Feb. 17,2012 file photo shows a Homeland Security police car is shown parked outside the Long Beach, Calif., Federal Courthouse in Long Beach, Calif. An FBI investigation h

 

              FILE - This Feb. 17,2012 file photo shows a Homeland Security police car is shown parked outside the Long Beach, Calif., Federal Courthouse in Long Beach, Calif.  An FBI investigation h
FILE - This Feb. 17,2012 file photo shows a Homeland Security police car is shown parked outside the Long Beach, Calif., Federal Courthouse in Long Beach, Calif. An FBI investigation has determined the fatal shooting of an Immigration and Customs Enforcement agent by a colleague at a federal building in Long Beach was justified. FBI spokeswoman Laura Eimiller declined to provide other details, saying they would be kept confidential because no criminal charges are planned. (AP Photo/Nick Ut)