Alastasia Bryan, 25, a New York City Correction Officer, was fatally shot on the night of December 4, 2016, in the Flatlands neighborhood of Brooklyn while sitting in her parked car preparing to drive to work at Rikers Island. A man approached the vehicle and fired five shots, striking her in the head and torso; she was pronounced dead at the scene.

Investigators focused on her ex-boyfriend, Keon Richmond. Evidence presented later showed Richmond had placed a GPS tracking device on Bryan’s car three days before the shooting, and surveillance footage captured the gunman walking up to the vehicle and firing before fleeing. Authorities believe the dispute began over a BMW Bryan had leased for Richmond during their relationship; after the breakup she asked for the car back, which reportedly enraged him.

Richmond was arrested on December 14, 2016, hiding in a basement closet in Flatbush. Shirley Mejia, identified as Richmond’s then-girlfriend, was charged with hindering prosecution for allegedly arranging storage of the getaway car, a Hyundai Elantra registered in her name, in New Jersey two days after the murder. The case relied on GPS data, cell site records, and surveillance video placing Richmond at the scene.

Did anyone who knew Alastasia or who lived in Flatlands that week see anything that could help clarify her last movements?