On June 1, 2017, Jessica Garth, 24, was sitting in a vehicle on the 4900 block of Beacon Avenue in the Walnut Park East neighborhood of St. Louis with her boyfriend, Derrick Irving, and an acquaintance, Julian Hayes, when someone opened fire on the car. The ambush killed Garth, Irving and Hayes at the scene or shortly thereafter, and their young children were in the vehicle. The couple’s five-year-old daughter was physically unharmed; their seven-year-old daughter, Deniya, suffered a critical gunshot wound to the head and survived after a lengthy hospitalization.

Authorities identified Jerome Leon Buress Jr. as the shooter; he surrendered to police on June 25, 2017, and was charged with multiple felonies including three counts of first-degree murder, domestic assault and armed criminal action. Prosecutors said Buress approached the vehicle and fired on its occupants, and testimony at trial included the seven-year-old shielding her younger sister during the attack. Buress was convicted on multiple counts, among them first-degree murder for Garth and Irving, and was sentenced to life in prison without parole.

Did anyone in Walnut Park East see the vehicle or the people involved that day who hasn’t already spoken to investigators?