In late summer 2015, 19-year-old Robert Alston of Philadelphia was killed in Pittsburgh during what had been a ride to a party. Alston, an African American male, was a passenger in a car driven with his friend Eietyoung Kemp, also 19. On August 22, 2015, Kemp, who was in the backseat, attempted to adjust a firearm concealed in his underwear; the gun discharged, a bullet passed through the front seat and struck Alston in the torso. He was taken to a local hospital and died of the wound.

Kemp fled the scene and discarded the firearm in the Allegheny River, then turned himself in days later. He was originally charged with criminal homicide, carrying a firearm without a license, reckless endangerment and tampering with physical evidence; he said the shooting was accidental. The homicide charge was later reduced to involuntary manslaughter, and Kemp pleaded guilty to involuntary manslaughter and carrying a firearm without a license. He was sentenced in May 2016 to 11 1/2 to 23 months in prison, followed by 10 years of probation.

Did anyone who knew Robert or was in that part of Pittsburgh on August 22, 2015, see or hear anything that could add detail to what happened that night?