Mark Edward Grace, 46, was killed in Tulsa, Oklahoma, on June 22, 2008, after offering to help a friend find the friend’s girlfriend following an argument. The search took them near an apartment complex around 1700 E. 67th Street, an area Grace lived near but did not reside at. Shortly before 2 a.m. a group confrontation in the complex parking lot escalated; witnesses reported gunshots but Grace died from multiple stab wounds.

Authorities identified David Lee Benson as a suspect, but a technicality at a preliminary hearing led to his release. No one has been convicted in Grace’s killing, and the case remains open with the Tulsa Police Department Cold Case Unit. Investigators continue to seek information that could lead to resolution.

If anyone was in the vicinity of 1700 E. 67th Street on the night of June 22, 2008, or has information about the groups involved, please share what is known with investigators.