Sandra Garvin, a 33-year-old African American woman, was killed on April 29, 1986, in Philadelphia. Her body was later recovered in the apartment of Harrison Graham after neighbors complained about a foul odor coming from his residence. Investigators found the decomposing remains of seven women throughout the dwelling and determined the victims had been strangled, often during or after sexual encounters.

Graham, described in reports as mentally impaired and a drug user, had allegedly lured women to his home with the promise of drugs. He surrendered to police, confessed to the seven killings, and was convicted on seven counts of first-degree murder and abuse of a corpse; his initial death sentence was later changed to life in prison.

Was anyone in the neighborhood at that time aware of women going to that apartment or of concerns about Graham’s behavior?