Deontra Alexander, a 19-year-old African American man, was found dead inside an apartment on 12th Street in Lafayette, Louisiana, on July 29, 2015. He died from a single gunshot wound to the head. His killing was one of several shootings that summer which prompted marches and rallies as residents demanded action to stem rising gun violence.

Investigators identified 23-year-old Felix Parry Pierre III as a suspect. He was arrested, charged with second-degree murder and later indicted by a grand jury; authorities took him into custody on a warrant as the legal process moved forward. The investigation remained active while the community and Alexander’s family coped with the loss.

If anyone has information about Alexander’s death or the events leading up to it, please share what is known with investigators.