Jessica Vidal was 21 when she was found dead in an alley near 38th Lane and Monte Vista in Phoenix on the morning of Sunday, September 16, 2012. Officers responding to a welfare check discovered her body and observed trauma; the death was later ruled a homicide from a gunshot wound.

Investigators followed at least one lead: a witness reported seeing a black four-door sedan in the area around the time of the killing. The Phoenix Police Department’s Violent Crimes Bureau investigated, but no suspects were publicly identified and no arrests were made. The case has remained open and is listed with Silent Witness, which is soliciting anonymous tips.

Does anyone who was in that neighborhood on the morning of September 16, 2012, or who remembers a black four-door sedan near 38th Lane and Monte Vista have information that could help this investigation?