Seventeen-year-old Antoine Quinn Jr. was fatally shot in St. Louis, Missouri, on July 21, 2016. He was riding in the front seat of a vehicle reported stolen about three weeks earlier when he was shot multiple times — head, back, chest, legs, and abdomen — and did not survive.

Authorities say Quinn had been picked up by 17-year-old Eric Porter of Berkeley and other individuals who reportedly invited him out to ride and smoke marijuana, but the outing was later described as a setup motivated by revenge for an earlier shooting. The investigation led to Porter’s arrest; in January 2017 he was charged with first-degree murder and related offenses and held on a $500,000 cash-only bond.

Antoine was a Black teenager whose life ended violently and whose community was left grieving. If anyone has information about the July 21, 2016 events or knew Antoine, please come forward with tips.