Irene Pierce Darley, 35, was killed outside her apartment in Ridley Park, Pennsylvania, on December 4, 1987. The attack followed a period of obsessive stalking by a former boyfriend, Thomas Vile. He ambushed Darley and shot her twice in the head with a double-barreled shotgun.

Vile, then 35, fled to Canada immediately after the murder and was arrested in Toronto the next day. He spent ten months in Canadian custody while an extradition fight over the death penalty played out; opponents sought to prevent his return to the United States. He was ultimately extradited to Pennsylvania, tried, convicted of first-degree murder and sentenced to life without parole.

Darley was the daughter of television director and producer Dick Darley. Does anyone have information about her life in Ridley Park or the stalking that preceded the killing?