His parents and health officials considered him stable enough to live without supervision, in spite of the fact he displayed severe abnormal behavior from an early age.
By the age of 10, Chase displayed three known warning signs of children who grow to become serial killers - bed-wetting beyond the normal age, cruelty to animals and setting fires.
According to published reports, Chase's mental disorders intensified during his teenage years. He became a drug user and regularly exhibited symptoms of delusional thinking. He managed to maintain a small social life, however his relationships with women would not last long. This was because of his bizarre behavior and because he was impotent. The later problem obsessed him and he voluntarily sought help from a psychiatrist. The doctor was unable to help him however and noted his problems were a result of his severe mental disorders.
After turning 18, Chase moved out from his parent's home and in with roommates. His roommates, bothered by his heavy drug use and wild behavior, asked him to leave. After Chase refused to move out, the roommates left and he was forced to move back in with his mother. This lasted until he became convinced she was trying to poison him and Chase was moved to an apartment paid for by his father.
A Search for Help:
Isolated, Chase's obsession with his health and bodily functions heightened. He suffered from constant paranoid episodes and would often end up at the hospital emergency room in search for help. His list of ailments included complaints that someone had stolen his pulmonary artery, that his stomach was backwards and that his heart had stopped beating. He was diagnosed as being a paranoid schizophrenic and spent a short time under psychiatric observation, but soon released.
Unable to find help from doctors, yet still convinced that his heart was shrinking, Chase felt he had found the cure. He would kill and disembowel small animals and eat the various parts of the animals raw. However, in 1975, Chase suffering from blood poisoning after injecting the blood of a rabbit into his veins, was involuntarily hospitalized and diagnosed with schizophrenia.
Schizophrenia or Drug-Induced Psychosis?:
Doctors treated Chase with the usual drugs used for schizophrenia with little success. This convinced doctors that his illness was from his heavy drug use and not schizophrenia. Regardless, his psychosis remained intact and after he was found with two dead birds with their heads cut off and blood sucked out, he was moved to a hospital for the criminally insane.
Incredibly, by 1976 his doctors decided he was no longer a threat to society and released him under the care of his parents. Even more incredibly, his mother made the decision that Chase no longer needed the antischizophrenia medications prescribed and stopped giving him the pills. She also helped him find an apartment, paid his rent and bought his groceries. Left unchecked and without medication, Chase's mental disorders escalated from the need for animal organs and blood, to human organs and blood.
December 29, 1977 - Chase killed 51-year-old Ambrose Griffin in a drive-by shooting. Griffin was helping his wife bring groceries into the house when he was shot and killed.
Random Violent Acts:
January 11, 1978 - Chase attacked a neighbor after he asked for a cigarette then restrained her until she turned over the entire pack. Two weeks later, he broke into a house, robbed it then urinated inside a drawer containing infant clothing and defecated on the bed in a child's room. Interrupted by the owners return, Chase was attacked but managed to escape.
Chase continued to search for unlocked doors of homes to enter. He believed a locked door was a sign that he was not wanted, however an unlocked door was an invitation to enter.
January 23, 1978 - Teresa Wallin, pregnant and at home alone, was taking out the garbage when Chase entered through her unlocked front door. Using the same gun he used to kill Griffin, he shot Teresa three times, killing her, then raped her corpse while stabbing her several times with a butcher knife. He then removed multiple organs, cut off one of the nipples and drank the blood. Before leaving, he collected dog feces from the yard and stuffed it into the victim's mouth and down her throat.
January 27, 1978 - The bodies of Evelyn Miroth, age 38, her six-year-old son Jason, and friend Dan Meredith, were found murdered inside Evelyn's home. Missing was Evelyn's 22-month-old nephew David, who she had been baby sitting. The crime scene was horrific. Dan Meredith's body was found in the hallway. He was killed with a direct gunshot would to his head. Evelyn and Jason were found in Evelyn's bedroom. Jason had been shot twice in the head.
The depth of Chase's insanity was clear when investigators went over the crime scene. Evelyn's corpse had been raped and sodomized multiple times. Her stomach had been cut open and various organs were removed. Her throat was cut and she had been sodomized with a knife and there was a failed attempt to remove one of her eyeballs.
Not found at the murder scene was the infant, David. However, blood in the baby's crib gave police little hope the child was still alive. Chase later told police that he brought the dead infant to his apartment. After mutilating the baby's body he disposed of the corpse at a nearby church, which is where it was later found.
What he did leave at the grotesque murder scene were clear hand and shoe prints, which soon led police to his door and to the end of Chase's insane rampage.
The End Result:
In 1979, a jury found Chase guilty on six counts of first-degree murder and he was sentenced to die in the gas chamber. Disturbed by the gruesome details of his crimes, other prisoners wanted him gone and often tried to talk him into killing himself. Whether it was the constant suggestions or just his own tortured mind, Chase managed to collect enough prescribed antidepressants to kill himself. On December 26, 1980, prison officials discovered him dead in his cell from an overdose of medications.
Kessler,Robert K., The Vampire Killer