Heidnik's insanity claim was successfully rebutted by the prosecution led by Charles F. Gallagher, III. The fact that he successfully amassed approximately $550,000 through his brokerage account was used to prove that he was an astute investor, and therefore not insane. Testimony which was given by his Merrill Lynch financial advisor, Robert Kirkpatrick, was also used to prove Heidnik's mental competence. Kirkpatrick called Heidnik "an astute investor who knew exactly what he was doing." On July 1, 1988, Heidnik was convicted of two counts of first degree murder, six counts of kidnapping, five counts of rape, four counts of aggravated assault and two counts of involuntary deviate sexual intercourse. He was sentenced to death and incarcerated at the State Correctional Institution at Pittsburgh. In January 1989, he attempted suicide with an overdose of prescribed thorazine. In 1997, Heidnik's daughter, Maxine Davidson White, and his ex-wife, Betty Heidnik, filed a suit in federal court in the Eastern District of Pennsylvania, in which they requested a stay of execution on the basis that Heidnik was not competent enough to be executed. After two years of legal proceedings in various courts, on July 3, 1999, the U.S. District Court for the Eastern District of Pennsylvania issued its final ruling, clearing the way for Heidnik's execution. Death Heidnik was executed by lethal injection on July 6, 1999, at the State Correctional Institution – Rockview, in Bellefonte, Pennsylvania and his body was cremated. As of 2022, he was the last person to have been executed by the Commonwealth of Pennsylvania. He remains the third of only three people who have been executed in Pennsylvania since the resumption of the death penalty. The other two were Keith Zettlemoyer in May 1995 and Leon Moser in August 1995. List of victims Josefina Rivera — age 25, kidnapped on November 25, 1986. Sandra Lindsay — age 24, kidnapped on December 3, 1986; murdered on February 7, 1987. Lisa Thomas — age 19, kidnapped on December 23, 1986. Deborah Dudley — age 23, kidnapped on January 2, 1987; murdered on March 19, 1987. Jacqueline Askins — age 18, kidnapped on January 18, 1987. Agnes Adams — age 24, kidnapped on March 23, 1987 (rescued the same day). In popular culture Heidnik was one of six real-life murderers upon whom author Thomas Harris based Jame "Buffalo Bill" Gumb, the villain of his 1988 novel The Silence of the Lambs. In