Joshua Ramone Smith, 21, was shot and killed on January 4, 2014, outside a vacant business on Glenwood Avenue in Raleigh, North Carolina. After the shooting a friend drove him to a nearby Burger King, from where he was taken to WakeMed hospital and later died of his injuries.

Raleigh police arrested four men in connection with the killing: Ussef Kamara, 21; Troy Michael Williamson, 22; Luis Herrera, 21; and Raheem Crossley, 23. All four were charged with murder. Investigators have said the crime was not random but have not released a motive or explained how the suspects knew Smith.

Family members describe Joshua as hardworking, smart, caring and musically talented; he had been working for a local construction company while taking college classes online and recording music. The family says they have no clear link between Joshua and the suspects beyond a mutual acquaintance through a woman he had dated and they say the motive remains a mystery.

Does anyone who knew Joshua or who was in the Glenwood Avenue area on January 4, 2014 have information that could help explain what happened?