On an autumn morning a Collingdale patrol officer found 54-year-old Dwayne Williams unresponsive inside the SEPTA trolley stop on MacDade Boulevard. First responders pronounced him dead; the medical examiner determined the cause of death was a gunshot wound to the chest.

Detectives reviewed nearby surveillance footage that showed Williams seated on a bench when another man walked up, raised his arm toward Williams, and Williams then clutched his chest and fell. Investigators tied a purchase made shortly before the shooting to 27-year-old Nicholas Hoyle of Sharon Hill. Hoyle had a prior robbery conviction that made him ineligible to possess a firearm.

Two days after the shooting officers located Hoyle in Sharon Hill, recovered a gun from his waistband and the same payment card used at the local business, and charged him with homicide and related offenses. Did anyone in the area recognize Hoyle or see suspicious activity near the trolley stop that morning?