Thomas Cherry was 41 when his body was found in Philadelphia on August 30, 2008. His death was ruled a homicide amid a late-summer wave of violence across the city that year.

The investigation faced obstacles linked to a local culture of silence and fear of retaliation, which investigators cited as making it hard to find cooperative witnesses. Despite work by the Philadelphia Police Department, the case went cold; no arrests or public identifications of suspects have been made and the murder remains unsolved.

What can readers who lived in Cherry’s neighborhood or knew him contribute to help move this case forward?