In 1970 Heidniks mother committed uicide by drinking 'Mercuric Chloride'. Heidniks little brother also suffered from mental illness and attempted to commit suicide. Due to his mental illness from august 1962 until his arrest in March 1987 Heidnik was admitted into psychiatric hospitals over a dozen times and attempted to commit suicide overġ3 times. He also held a position as a psychiatrist nurse at a Veterans Administrations Hospital' in Coatesville. Heidnik ,a disabled army veteran, who accomplished to graduate as a practical nurse in 1 and work at one of the best hospitals in Philadelphia 'University of Pennsylvania'. Jack Apsche, a well-known Philadelphia psychologist, who investigated further into Gary Heidnik history of mental illness, and was indecisive about his disorder and not sure if he wanted to diagnose him with being schizoid or schizophrenic, still indecisive Gary was diagnosed with 'Schizoid Personality Disorder' and prescribed a heavy dosage of 'Trifluoperazine' (Stelazine). Shortly after his first sick appointment Mr. Heidnik was released due to him complaining about feeling fatigue, dizzy, nauseated, and experiencing severe headaches, which made him incompetent he was sent to the sick bay and was seen by a neurologist which etermined that Gary was suffering from gastroenteritis (inflammation of the stomach and the intestines, with vomiting and diarrhea, usually as a result of bacterial or viral infection). On JanuHeidnik was discharged from the army with honorable discharged and was certified as 100% disabled. Gary Heidnik Joined the army and was exceeding expectations he began loan sharking, which he collected a lots of money from 'interest' he added on the loans.

In school he was also teased for having a misshapen ead, which was the result from him falling from a tree as a young child.

Gary heidnik misshapen head