Nicholas Mills, 19, was shot and killed at his Columbia, Pennsylvania, apartment on North Third Street on July 29, 2019. Mills was hosting friends when a 17-year-old present, Antonio Acosta, found a handgun between the couch cushions and began handling it. Witnesses say Acosta removed the magazine, pointed the gun at Mills and pulled the trigger; the bullet struck Mills in the throat, and he collapsed outside the apartment. Emergency responders arrived within minutes but could not revive him.

Acosta was arrested at the scene and admitted to the shooting, saying he did not intend for it to happen. The handgun had been reported stolen two weeks earlier. Family members described their grief and disbelief, saying they could not accept the shooting as an accident; Acosta apologized at sentencing and said Mills was like a brother to him. Does anyone have information about that night or knew Mills and can help clarify what happened?