Terrance Walker was 27 when he was found with a fatal gunshot wound to his torso near West 40th Street and Sixth Avenue, close to Bryant Park in New York City, in the early morning hours of December 17, 2016. He was experiencing homelessness and was pronounced dead at the scene.

The NYPD investigated the shooting and released surveillance images showing a man seen entering a deli and a subway corridor shortly after the incident. Police say that evidence, including that footage, helped identify a suspect. Terrell Dupree, 38, of the Bronx, was arrested and charged with Walker’s murder; authorities say an argument between the two men preceded the shooting.

If anyone who knew Terrance, or who was in the Bryant Park area that night, has information that could help fill gaps in the timeline, please share what is known.