Alonzo James Guyton, 24, was shot just after midnight on October 25, 2011, on the 4200 block of Kaywood Drive in Mount Rainier, Maryland. He was taken to a local hospital but died shortly after arrival. Guyton was a freshman at Howard University, a former Marine, and described by loved ones as joyful and passionate about music. He was walking to a friend’s house when the encounter occurred.

Investigators treated the incident as a robbery gone wrong. A witness reported a blue van, later involved in a crash in Washington, D.C., and police recovered a handgun from that stolen vehicle. A handprint linked 20-year-old William Knight of the District of Columbia to the shooting; he was arrested and charged with first-degree murder. Prince George’s County detectives later identified and charged 21-year-old Lorenzo Carlton of Silver Spring and 18-year-old Michael Jordan of Washington, D.C., with first-degree murder as well. In January 2014, William Knight and Michael Jordan went to trial on first-degree murder and related charges connected to Guyton’s death.

Did anyone who knew Alonzo, his route that night, or the blue van see anything that could shed more light on what happened?