David A. Mullins, a 28-year-old from Columbus, Ohio, died on January 18, 2015. The death prompted a complex, multi-agency investigation that has included searches, interviews and forensic work, but investigators have not reached a conclusive breakthrough and no arrests have been made.

Authorities from local, state and federal levels have been involved and a variety of leads and suspects have been explored without producing a resolution. The Mullins family has cooperated with investigators and remains active in seeking answers as the case stays open.

Did anyone in the Columbus area have information about David’s activities in January 2015 or the people he associated with?