Sep 3, 2013 23:56 Police arrest man in Mardi Gras Day slaying Police arrest man in Mardi Gras Day slaying New Orleans Advocate report Sept. 03, 2013 Comments New Orleans Police arrested a man Friday in the Mardi Gras Day fatal shooting of a 22-year-old man in the 7th ward. Police said Devin Waterhouse, 24, gunned down 22-year-old Kiran Harris in the 1800 block of Laharpe Street at about 6:15 p.m. on Feb. 12. Harris was shot in the head and died at the scene. Detectives took Waterhouse into custody Friday when he reported to the Weekend Warriors program at the Orleans Parish Prison. Waterhouse was required by the Municipal Court to participate in the program after he was convicted of carrying a concealed weapon. The program requires offenders to report to prison every Friday and remain incarcerated until Sunday. Police said Waterhouse has previous arrests for illegal possession of a weapon, possession of a firearm with an obliterated serial number, battery, and disturbing the peace. “I appreciate the work of homicide detective Theo Kent, who stayed on this case until he gathered the information necessary to make this arrest,” police Superintendent Ronal Serpas said.