On Sunday, August 6, 2023, 22-year-old Robert Green was shot and killed in the Kingsway West neighborhood of St. Louis, Missouri. Police responded just before 2:00 p.m. to the 5100 block of Greer Avenue and found Green unresponsive with multiple gunshot wounds; he was taken to a hospital and pronounced dead.

Investigators say the violence began during a dispute over the sale of a firearm. Prosecutors allege a 16-year-old chased Green from a gangway, opened fire, and after Green collapsed in the street the shooter fired twice into his head and then stole Green’s gun. Surveillance video reportedly captured the sequence and was later used in court.

Police identified the suspect as Robert Walker Jr., who was certified to stand trial as an adult and taken into custody on homicide-related charges. What additional details are there about Green’s life or anyone who may have witnessed the shooting?