On the evening of June 7, 2017, in Tucson’s Mission Manor Park, a verbal argument in the park’s west parking lot escalated into gunfire. At about 10:15 p.m., an unidentified man produced a handgun and shot two men who were on the ground with critical injuries; despite bystanders’ attempts at first aid, 20-year-old Roman Nieto and 26-year-old Guillermo Ortiz-Morales were pronounced dead at the scene.

Witnesses reported the shooter fled in a dark-colored passenger car, possibly a Dodge or a Chrysler, and described him as a Hispanic male with a stocky build. Homicide detectives interviewed numerous people who were at the park that night, and the victims’ families publicly appealed for help a month later, but no arrests have been announced and no suspect has been publicly identified.

Who was in Mission Manor Park that night and saw what happened or the car leaving the scene?