Alabama law enforcement officers Sunday were imploring people to come forward with information about a shooting that killed four people and injured 28 others during a teenager’s birthday party. Among those killed was a high school senior who planned to play college football and was celebrating his sister’s 16th birthday. The shooting erupted Saturday night at a dance studio in downtown Dadeville.

During two news conferences Sunday, Sgt. Jeremy Burkett of the Alabama Law Enforcement Agency did not take questions. He did not say if a suspect was in custody or if investigators knew about any motivation. He did not provide the names of those killed. “We’ve got to have information from the community,” Burkett said during a Sunday evening news conference.