Police Sources Identify Baton Rouge Shooter It was Gavin Long's birthday, according to reports By Luke Roney, Newser Staff Posted Jul 17, 2016 4:29 PM CDT 384 comments Comments Baton Rouge Police stand at a checkpoint at the entrance of Our Lady Of The Lake Medical Center, Sunday, July 17, 2016, in Baton Rouge. (Hilary Scheinuk/The Advocate via AP) (Newser) – Louisiana's superintendent of state police says there is "no active shooter scenario going on in Baton Rouge," the New York Times reports. That announcement comes hours after three police officers were gunned down Sunday morning. Three other officers were wounded. The suspect was killed. According to earlier reports, two additional suspects were believed to be at large. Authorities now, however, say there was just one shooter involved. The dead suspect was dressed in all black and wearing a mask, CNN reports. He was armed with a rifle, per NBC, which reports that law enforcement sources have said the shooter was Gavin Long of Kansas City, Mo. According to CBS, Sunday was Long's 29th birthday. The slain officers have yet to be named; however, according to reports, they include a 45-year-old East Baton Rouge sheriff's deputy and two Baton Rouge police officers, aged 32 and 41. One of the injured officers was in critical condition. Per CNN, police responded to a call of a "suspicious person walking down Airline Highway with an assault rifle" Sunday morning and the firefight began.