Another suspect was arrested Thursday evening over a deadly rampage at a “Sweet 16” birthday party on Saturday in Dadeville, Alabama, just hours after two young men were placed under arrest. The total number of people charged in connection with the shooting now stands at six. District Attorney Mike Segrest said the latest suspect was a 15-year-old who was taken into custody Thursday afternoon, according to AL.com, and faces four counts of reckless murder. There were no further details provided. Earlier Thursday morning, Johnny Letron Brown, 20, was apprehended around 8 a.m. and charged with four counts of reckless murder, according to the Alabama Law Enforcement Agency. Three hours after that announcement, the agency said that Willie George Brown Jr., 19, had also been arrested. It was not immediately clear if the suspects are related. Earlier this week, three other men, including two brothers aged 16 and 17, were arrested on the same charges. The teens were charged as adults, prosecutors said. The shooting, for which authorities have yet to make public a possible motive, killed four people ages 17 to 23. At least 32 others were wounded.