Cody Jamal Mathis was 21 when he was killed in Columbus, Georgia, on Sunday, August 20, 2017. Authorities determined his death to be a homicide and the Columbus Police Department opened an investigation. Family and friends held a funeral service the following Saturday at Lamb’s International Funeral Home.

Investigators say the probe has been hampered by a lack of new leads and witnesses willing to come forward, and the case remains open with the Columbus Police Department.

If anyone in Columbus has information about Cody’s death or remembers suspicious activity around August 20, 2017, contact the Columbus Police Department.