Michael Howell, a 46-year-old Black man, was found shot to death inside his Bristol Park apartment in Tulsa, Oklahoma, on June 8, 2014. Neighbors called 911 after hearing gunshots shortly after 11 p.m.; officers found Howell with a gunshot wound to the chest and a bullet that had pierced his apartment door.

Witnesses reported seeing Howell speaking with an unknown African American man shortly before the shooting. In the immediate aftermath, other witnesses described four masked individuals running from the building and getting into a gold or silver SUV. Police also learned Howell had been involved in prior altercations with several residents of the complex, so investigators initially looked at people who lived nearby.

Investigators say evidence has been limited and no arrests have been made; the case is currently cold and the motive is believed to be a dispute that escalated. Does anyone have information about Howell, the conversation witnesses described, or the gold or silver SUV seen leaving Bristol Park on the night of June 8, 2014?