Matthew Jones was 22 when he was killed in Jacksonville, Florida, and was found dead on December 25, 2015. Authorities say the circumstances indicate his death was a homicide, but the case remains unsolved.

The Jacksonville Sheriff’s Office has been asking the public for any information that could identify the person or persons responsible. First Coast Crime Stoppers is offering a cash reward for tips that lead to an arrest.

If anyone knew Matthew, was in Jacksonville that Christmas, or has information about his movements or contacts around December 25, 2015, please contact the Sheriff’s Office or Crime Stoppers.