David Cooper was 43 when he was found dead in Miami on September 18, 2011. His death is listed among a long run of unsolved homicides from that period and remains under investigation by the Miami Police Department.

Details about the circumstances of the killing have not been fully disclosed. Investigators report no identified suspects and say a lack of witnesses and limited forensic leads have hindered progress, leaving the case cold. Miami-Dade Crime Stoppers is offering rewards for tips that could lead to an arrest.

If anyone has information about David Cooper, where he was before September 18, 2011, or saw anything suspicious in the area around that date, please contact Miami-Dade Crime Stoppers with any tips.