Bobby Jones, 27, was fatally shot in Dallas, Texas, on January 16, 2014 after a dispute over money from the sale of a car engine. Witnesses say the argument escalated and culminated in the shooting.

The Dallas Police Department’s searchable offense and arrest database covers records beginning June 1, 2014, so it does not list incidents from January 2014.

Who in Dallas might have information about the sale, the dispute, or the people involved that night?