Seventeen-year-old Zalynnda Kassouge was shot and killed in the early evening of December 21, 2017, while sitting in her red Jeep in Denver’s Green Valley Ranch neighborhood. Officers found her unresponsive in the driver’s seat near East 46th Avenue and Ceylon Court; the driver’s side window had been shattered by gunfire. Paramedics pronounced her dead shortly after arriving.

Police quickly identified a suspect, Shamil Jefferson. An arrest affidavit says a friend had driven Jefferson to the area supposedly to meet a woman for a promotion; while waiting, Jefferson spotted Kassouge, exited the car, approached the Jeep and fired multiple shots through the driver’s side window. The friend drove away and called 911. Jefferson fled on foot, was struck by a vehicle but kept running, and a handgun was later found near the scene. Jefferson was arrested the next day and held for investigation of first-degree murder. The suspect’s father later told police he feared his son might be involved after recognizing the victim’s vehicle and saying a friend reported Jefferson had been seeking a gun and talked about killing his girlfriend and himself.

Does anyone have additional information about Zalynnda’s last known movements or who she was with that evening?