John William Roberts III was 21 when he was shot and killed on the evening of July 22, 2017, in the Lincoln Place neighborhood of Pittsburgh. Believing the gun to be unloaded, Nace pointed it at Roberts and pulled the trigger; a single shot struck Roberts in the chest.

Responding friends tried to help: Nace had another friend call 911, dragged the wounded Roberts to the driveway to be nearer the street, and performed CPR until emergency crews arrived. Roberts was taken to a hospital and pronounced dead. The case moved beyond an initial accidental-shooting investigation when prosecutors charged Nace with criminal homicide; those charges were later resolved when he pleaded guilty to involuntary manslaughter, recklessly endangering another person, and a firearms violation and received a prison term and probation.

Does anyone have details about the rifle’s origin or who had access to it that night?