Theresa Sciortino, 30, was found stabbed 25 times in the kitchen of her third-floor Philadelphia apartment on January 19, 1989. Neighbors had reported disturbing thumping noises that led police to investigate. Investigators concluded she had been sexually assaulted in the same attack.

Sciortino’s killing was the sixth in a string of attacks affecting white women in and around the Frankford Avenue area since 1985. All the victims were stabbed or slashed with a sharp instrument; several showed signs of sexual assault. Investigators began to suspect a serial offender later called the Frankford Slasher, though an arrest in 1990 for one related murder did not match witness descriptions and produced no physical link to Sciortino’s case.

The murder of Michelle Dehner in September 1990, after that arrest, was described as consistent with the earlier slayings, and questions remain about whether the true perpetrator was ever caught. Does anyone have information about Theresa’s life, routines, or who she might have been seen with in Frankford in the late 1980s?