Nathan Assad, 17, was shot and killed after a drug transaction in Baldwin Borough, a suburb of Pittsburgh. On the night of August 15, 2017, Assad arranged to sell a half-ounce of marijuana for $140 to another teen, 16-year-old Nathan Lee. Instead of paying, Lee allegedly robbed Assad of the marijuana and a gold chain and fled with a vehicle driven by 17-year-old Bryson Koontz.

Assad and a witness pursued the fleeing car. The chase ended at McAnulty and Horning roads, where Lee leaned out of the passenger window and fired at least three shots at Assad’s vehicle. One bullet struck Assad in the face; he was taken to UPMC Mercy Hospital and died in the early hours of August 16, 2017.

Both Lee and Koontz were arrested and charged as adults. Lee at first said Assad had tried to rob him, then pleaded guilty to third-degree murder and conspiracy to commit robbery and was sentenced to 17.5 to 35 years. Koontz pleaded guilty to voluntary manslaughter and robbery; his attorney said Koontz was the driver and had tried to discourage the shooting.

Did anyone in Baldwin Borough see the car or the chase that night who hasn’t spoken to investigators?