Marlon Arrington was 23 when he was found shot to death in an alley in Birmingham, Alabama, on March 22, 2017. His death was ruled a homicide and investigators opened a probe into the circumstances surrounding the killing.

The case grew cold over time. Arrington’s death was one of at least 33 unsolved homicides in Jefferson County that year, and no arrests or publicly identified suspects have been made in connection with his murder.

Anyone who knew Marlon, was in that area on March 22, 2017, or has information that could help investigators is urged to come forward.