
Richard Trenton Chase, later dubbed the “Vampire of Sacramento,” was a severely psychotic serial killer who murdered six people in California over the span of about a month, from late December 1977 to late January 1978, mutilating victims, drinking their blood, and consuming organs under the delusional belief that he needed these acts to keep himself alive. His case is one of the clearest modern examples of a disorganized, psychosis‑driven killer whose untreated paranoid schizophrenia, extreme somatic delusions, and early “Macdonald triad” behaviors converged into vampiristic homicide.
Born May 23, 1950, in Sacramento, California, Chase grew up in a home marked by reports of physical and emotional abuse and showed disturbing behavioral red flags from a young age. By his twenties, he suffered from florid paranoid schizophrenia and bizarre bodily delusions about his blood and organs, ultimately channeling those psychotic beliefs into a brief but extraordinarily brutal series of murders that shocked Sacramento and became forensic‑psychology case studies worldwide.
Chase was raised in a strict household in Sacramento where his father was described as domineering, physically punitive, and emotionally harsh, while his mother also reportedly engaged in emotional and sometimes physical abuse. This environment left him fearful, withdrawn, and with few healthy emotional outlets, compounding vulnerabilities that would later interact with biological and psychiatric risk factors.
By around age 10, he was already exhibiting the full Macdonald triad: persistent bed‑wetting, fire‑setting, and cruelty to animals. He tortured and killed small animals, set fires, and showed early signs of emotional detachment and impaired empathy – behaviors that, while not determinative on their own, are strongly associated in the literature with later severe violence when combined with abuse and psychiatric illness.
During adolescence, Chase became increasingly isolated and introverted, struggling to form and maintain friendships and romantic relationships. He developed chronic alcohol and drug use (including heavy marijuana and LSD), and he experienced persistent impotence, which fed a sense of masculine inadequacy that would later intertwine with his violent and sexualized acts.
He also began showing pronounced hypochondria and somatic preoccupations, repeatedly complaining that something was terribly wrong with his body. By his late teens and early twenties, these worries had morphed into fixed delusions: he claimed his heart occasionally stopped beating, that his blood was drying up or turning to powder, and that someone had stolen his pulmonary artery – beliefs consistent with emerging paranoid schizophrenia and somatic delusional disorder.
Concerned by his irrational complaints and increasingly bizarre behavior, his parents and others sought psychiatric help more than once, and he received a diagnosis of schizophrenia. However, treatment was intermittent and undermined by ongoing substance abuse, his own non‑compliance, and family dynamics that minimized or misunderstood the severity of his condition.
In the mid‑1970s, an especially alarming incident led to his involuntary commitment: he was found with blood smeared on him and claimed it came from animals he had killed, prompting placement in a psychiatric facility. At the hospital, staff nicknamed him “Dracula” because he fixated on blood, hoarded blood from therapy animals, and talked about needing to drink it to survive, yet after a period on antipsychotic medication he was judged improved enough for release.
Once home, his mother eventually discontinued his medication and pushed him to function “normally,” a decision that, combined with the lack of sustained oversight, preceded a sharp decline in his mental state and a slide toward full‑blown, untreated psychosis.
Before he killed people, Chase focused his rituals on animals. He shot, disemboweled, and dismembered pets and wildlife – rabbits, dogs, cats – and began consuming them raw. Convinced that his blood was deteriorating, he came to believe that ingesting the blood and organs of other living beings was the only way to prevent himself from dying.
He blended animal organs with soda or other liquids in a blender and drank the mixture, smeared blood on his body, and even injected animal blood into his veins. Roommates and neighbors complained of the overwhelming stench, his refusal to bathe, walking around naked, and his habit of handling bloody carcasses inside the apartment, but these reports resulted in only short‑lived interventions and eviction rather than long‑term secure treatment.
All of Chase’s known murders occurred in Sacramento over roughly one month, with rapid escalation in brutality and ritual complexity. His victims were chosen largely at random, based on opportunity and unlocked doors rather than specific personal characteristics.
Chase’s crime scenes displayed extreme disorganization, with evidence scattered, bodily fluids everywhere, and almost no effort to clean up or conceal his actions. In the Wallin murder, he shot her in the hand and head, then stabbed her repeatedly, disemboweled her, removed organs, and drank blood from a yogurt container he found at the scene. He smeared her blood on the walls and performed postmortem sexual acts, indicating a fusion of sexual dysfunction, aggression, and delusional “treatment” behavior.
At the Miroth residence, he again shot and stabbed, dragged bodies, undressed himself and Evelyn, and mutilated her abdomen, neck, and face, including carving into her body and inserting objects. He collected her blood in a bucket and drank it using a coffee cup, further demonstrating how central blood consumption was to his ritual. The repeated stabbing and mutilation of the genital and anal regions across scenes underscores the link between his sexual dysfunction, rage, and bodily invasion.
Chase told investigators that he walked through neighborhoods and tried doors, interpreting unlocked doors as a sign that he was “invited” to enter and locked doors as evidence that he was not welcome. This quasi‑magical thinking fit into his delusional system and also provided a simple, opportunistic method of selecting targets.
Unlike more organized serial killers who stalk particular victim types, Chase did not focus on a specific demographic beyond convenience; his victims included men, women, a child, and a toddler, all attacked in or near their homes. The driving motive was his psychotic need for blood and organs, not sexual preference or personal vendetta, which contributed to the randomness and terror of the crimes.
After the Miroth murders and David Ferreira’s abduction, Sacramento police had multiple lines of evidence: ballistics linking the .22‑caliber handgun to both the Griffin and Miroth scenes, bloody shoe prints, fingerprints, and witness descriptions of a thin, unkempt man driving a station wagon. They traced the vehicle to Chase, who had previously been a suspect in odd incidents involving blood and firearms.
When officers arrived at his apartment with a warrant, Chase attempted to flee out the back door carrying a blood‑stained box, but officers subdued and arrested him. Inside his residence, investigators found blood‑soaked clothing, animal parts, bone fragments, dishes and knives covered in blood, and blender containers with residue of blood and pulverized organs, as well as newspaper clippings about the murders. The apartment confirmed that his vampiristic rituals were ongoing and not confined to the homicide scenes.
Chase was charged with six counts of first‑degree murder and pleaded not guilty by reason of insanity. Defense psychiatrists detailed his long history of schizophrenia, delusions about his organs and blood, hospitalizations, and his belief that he needed to kill and drink blood to survive, arguing that he could not appreciate the wrongfulness of his acts in any meaningful way.
The prosecution presented their own experts, who agreed he was mentally ill but maintained that he met the legal criteria for sanity: he understood that what he was doing was against the law, as evidenced by at least minimal efforts to avoid detection, flight from police, and his ability to plan aspects of the crimes (acquiring weapons, choosing locations). In May 1979, the jury found him legally sane and guilty on all counts, and he was sentenced to death, sending him to death row at San Quentin State Prison.
At San Quentin, Chase remained severely psychotic and socially isolated, spending most of his days alone in his cell. He continued to exhibit paranoid ideation and somatic delusions, and he hoarded prescribed medications. In interviews, including with FBI profiler Robert Ressler, he acknowledged his crimes and reiterated that he had believed he needed blood and organs to prevent his own death, describing his thinking in the flat, matter‑of‑fact tone often seen in chronic psychosis.
On December 26, 1980, at age 30, Chase was found dead in his cell from an overdose of doxepin (Sinequan), an antidepressant he had been stockpiling; his death was ruled a suicide. No execution date had been set, meaning his life ended through self‑destruction rather than the legally scheduled completion of his death sentence.
Chase’s case is frequently used in forensic training as an exemplar of a psychosis‑driven, disorganized serial killer whose violence is rooted more in delusional “medical” necessity than in classic psychopathic thrill‑seeking. His central belief – that his blood was deteriorating and his organs were failing, and that only ingesting others’ blood and organs could keep him alive – provided a powerful, warped rationale that allowed him to bypass ordinary moral and empathic restraints.
At the same time, his childhood pattern of cruelty to animals, fire‑setting, bed‑wetting, and early emotional detachment suggests that significant conduct and attachment disturbances predated his full psychotic break. Substance abuse further impaired his brain and eroded any remaining self‑control, while system failures – brief hospitalizations, premature release, medication discontinuation – left a clearly dangerous, floridly psychotic man at large with access to weapons and victims.
Chase embodies the collision of early developmental damage, severe mental illness, and institutional breakdown: a man whose horrific crimes were the endpoint of a long, visible descent that multiple systems failed to fully interrupt.

Fascinated by criminal psychology? Discover the thriller Murder.net from the creator of ViolentMinds.