Baton Rouge cop killer left note, fired at least 43 rounds


( CNN) The Louisiana law officers who killed Gavin Long after he shot dead three of their colleagues in a targeted attack on police in Baton Rouge last summer were justified “and surely saved other lives, ” a prosecutor said Friday.

East Baton Rouge Parish District Attorney Hillar Moore III liberated the findings of the 11 -month investigation into the July 17 assault, in which Long killed three policemen and injured three others in a commonwealth already roiled by several police-involved shootings that month.

Long, a 29 -year-old black Missouri resident and discharged Marine, arrived in Baton Rouge five days earlier and was determined to kill police officer, “black or white … as long as they had a badge, ” Moore said in a news conference.