BATON ROUGE, La. — A gunman fatally shot three law enforcement officers and wounded three others here on Sunday before being killed in a shootout with the police. The attack’s motive was unclear as of Sunday evening, leaving an anxious nation to wonder whether the anger over recent police shootings had prompted another act of retaliation against officers.
Some details about the gunman began to emerge late Sunday: Officials identified him as Gavin Long, an African-American military veteran. According to military records released by the Marine Corps, Mr. Long served as a data network specialist and was a sergeant when he left the Marines in 2010. He enlisted in his hometown, Kansas City, Mo., in 2005, and was deployed to Iraq from June 2008 to January 2009, his records show. They also show a number of commendations, including the Good Conduct Medal.