Michael Calhoun, 45, was fatally shot in the early morning of October 20, 2010, near the 7400 block of Calhoun Road in Houston. Officers responding to reports of gunfire found him unresponsive with multiple gunshot wounds; emergency medical services pronounced him dead at the scene. Witnesses saw a dark-colored vehicle speeding away immediately after the shooting.

Investigators said the killing may have been tied to a personal dispute, but no suspects had been identified and the Homicide Division continued to investigate. The case occurred amid a year when Houston’s homicide rate was 12.9 per 100,000, a slight decline from the year before, but homicides remained a pressing issue for the city.

If anyone saw the dark-colored vehicle or has information about a dispute involving Michael Calhoun, contact the Houston Police Department’s Homicide Division.