In the early morning hours of a Friday in November 2015, 25-year-old Shakoor Arline and 32-year-old Lisa Smith were found shot to death in the backseat of Smith’s white Toyota Sequoia in a secluded area of Fairmount Park. Parks and Recreation employees discovered the vehicle parked on the grass off Lemon Hill Drive later that afternoon. Both victims had been shot multiple times in the head; investigators said at least nine shots were fired through the rear door between midnight and 5 a.m.

The scene suggested an ambush during an intimate encounter—Arline was found unclothed and Smith partially dressed—and police described the killings as a crime of passion. The Philadelphia Homicide Unit interviewed people connected to both victims, recovered .40-caliber shell casings and lifted fingerprints from the SUV, and pursued leads about alleged stalking and a tracking application, but those efforts did not produce an arrest. No one has been charged in the double homicide, and a reward was offered for information that could identify the person who approached the SUV that night.

Does anyone have information about Shakoor, Lisa, or their movements in Fairmount Park that night?