Donald Harvey — Angel of Death Serial Killer and Toledo Prison Murder - X-UMED

LAST UPDATED: SEPTEMBER 19, 2026

Toledo

Ohio

Donald Harvey

Angel of Death Serial Killer and Toledo Prison Murder

Donald Harvey was a hospital orderly and nurse’s aide whose murders stretched from Kentucky to Ohio between 1970 and 1987. Thirty-seven killings were ultimately established through guilty pleas, while Harvey claimed responsibility for still more deaths that could not all be independently proved.

His case was exposed after the March 1987 death of Drake Memorial Hospital patient John Powell led to the discovery of cyanide. Investigators then uncovered a pattern of poisonings, suffocations and interference with medical care involving patients whose illnesses had often made their deaths appear natural.

Harvey later served multiple life sentences in Ohio. His final connection to Northwest Ohio came at Toledo Correctional Institution, where he was fatally beaten in his cell in March 2017.

OVERVIEW

Harvey later served multiple life sentences in Ohio. His final connection to Northwest Ohio came at Toledo Correctional Institution, where he was fatally beaten in his cell in March 2017.

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REGION

Northwest Ohio

ERA

Multiple Eras

ENVIRONMENT

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STORY / LEGEND

The “Angel of Death” story is darker than the nickname suggests. Harvey was widely described as a mercy killer because he sometimes claimed he was ending the suffering of seriously ill patients. Contemporary prosecutors, Harvey’s own statements and the victims he selected make that explanation incomplete.

Some killings involved people who were not terminal patients at all. In the 1987 Ohio cases, Harvey admitted poisoning people connected to his personal life as well as hospital patients. UPI’s contemporary victim list included the father of Harvey’s roommate, a neighbor and an acquaintance, while attempted-murder and assault cases involved Harvey’s roommate, his roommate’s mother and another acquaintance.

The second piece of the legend is the victim count. Numbers above 37—often 50 or more—come largely from Harvey’s confessions, statements attributed to him and additional suspected deaths. Thirty-seven remains the strongest documented count because those killings were established through guilty pleas.

The result is a case that became larger in popular memory than the court record itself: a supposed mercy killer who admitted killing for reasons that included anger and control, and a convicted total of 37 surrounded by a much larger unresolved number.

ORIGIN / STORY DEVELOPMENT

The public story of Donald Harvey did not begin with a decades-long serial-killer investigation. It began with one hospital death: John Powell at Daniel Drake Memorial Hospital in March 1987.

Powell’s autopsy produced evidence of cyanide poisoning, leading investigators to Harvey. Staff suspicions, television reporting, interviews, exhumations and Harvey’s own confessions then transformed a single poisoning case into an investigation of deaths across Ohio and Kentucky.

The “Angel of Death” label became attached to Harvey through the hospital setting and his claims of mercy. But the nickname outlived the more complicated record: some victims were not terminally ill, some attacks arose from personal relationships, and Harvey’s own explanations included power, anger and control.

His 2017 death at Toledo Correctional Institution added a final chapter unrelated to the original hospital murders but directly connected the case to Northwest Ohio.

HISTORICAL BACKGROUND

From Kentucky hospital worker to serial murderer. Harvey was born April 15, 1952. As a teenager he worked at Marymount Hospital in London, Kentucky. He later admitted killing patients there beginning in 1970. The hospital environment gave him access to people who were already sick, elderly or medically fragile—exactly the kind of deaths that could pass without immediate suspicion.

Ohio gave him new access. Harvey later worked in Cincinnati-area medical facilities, including the Veterans Administration Medical Center and Daniel Drake Memorial Hospital. Contemporary reporting shows that warning signs existed before his arrest. At the VA hospital, he left after disciplinary problems that included being caught with a loaded revolver; at Drake, coworkers later described an unsettling pattern of deaths around him.

Drake became the center of the case. Harvey worked at Daniel Drake Memorial Hospital from 1986 into 1987. Prosecutors said many of his victims were seriously ill and unlikely to receive autopsies, which helped the killings remain hidden. His documented methods included cyanide, arsenic, rat poison and other toxic substances, suffocation, tampering with respirators or oxygen, and poisoning food, drinks, feeding tubes or intravenous lines.

John Powell changed everything. Powell, 44, had been comatose after a motorcycle crash. He died at Drake on March 7, 1987. The autopsy raised suspicion of cyanide and toxicology confirmed poisoning. Harvey was charged in Powell’s death, turning what could have been accepted as another hospital death into a homicide investigation.

The investigation widened. Hospital workers spoke to reporters about suspicious deaths and Harvey’s behavior. Investigators revisited other cases, exhumed bodies and tested remains. What began with Powell expanded into a mass-murder investigation spanning multiple institutions and two states.

The 1987 Ohio plea was only the beginning. On August 18, 1987, Harvey pleaded guilty in Hamilton County to 24 aggravated murders, four attempted aggravated murders and one felonious assault. Contemporary reporting identified victims killed by cyanide, arsenic, rat poison, cleaning fluid and suffocation. The plea agreement removed the death penalty.

Kentucky and additional Ohio cases pushed the established total higher. Harvey later entered pleas in Kentucky for killings at Marymount Hospital, and further Cincinnati cases followed. By the end of the prosecutions, 37 murders had been established through guilty pleas. Contemporary reports also described Harvey claiming responsibility for substantially more deaths, but many could not be corroborated after the passage of years.

The “mercy” explanation did not fit the entire record. Harvey told interviewers that some killings were intended to end suffering. But the documented cases also included personal grudges and nonfatal poisonings. Contemporary reporting described him poisoning his roommate Carl Hoeweler and people connected to Hoeweler, making the simple image of a hospital worker euthanizing only dying patients impossible to sustain.

Ohio prison records preserve the legal aftermath. Ohio Department of Rehabilitation and Correction records identify Harvey as offender A199449, admitted October 26, 1987. The record lists numerous Hamilton County aggravated-murder convictions and an aggregate sentence of 80 years to life. His final listed institution was Toledo Correctional Institution.

His final homicide happened in Toledo. On March 28, 2017, Harvey was found badly injured in his cell at Toledo Correctional Institution. He died two days later. His death was treated as a homicide, creating a final Northwest Ohio chapter in a case whose murders had centered on Kentucky and Cincinnati.

The unresolved question remains the number. Harvey’s own claims exceeded the 37 murders established in court. Because many suspected victims had been seriously ill, some deaths were old by the time investigators learned of them, and evidence was limited or gone, the true total cannot be stated with the same confidence as the court-established 37.

REPORTED EXPERIENCES

Donald Harvey, 1987: In a contemporary UPI interview after his Ohio guilty pleas, Harvey spoke about John Powell’s death and said he had brought cyanide to the hospital intending to use it on himself, but instead gave it to Powell. The statement is Harvey’s own account and should not be treated as independent proof of his motive.

Hospital staff accounts: Contemporary Washington Post reporting said Drake employees had become suspicious of Harvey and that staff members told WCPO he frequently discovered deaths on his ward and joked about them. Those accounts helped push public attention beyond the original Powell case.

A victim’s widow: Izella Kendrick told The Washington Post that she had known Harvey as a cheerful and pleasant caregiver who “always had a warm word” while caring for her chronically incapacitated husband. She later learned that Harvey admitted killing him with cyanide-laced orange juice. Her account captures one reason the crimes were so difficult for families to recognize while they were happening.

ALTERNATE VERSIONS

37 vs. 50-plus victims: Thirty-seven murders were established through guilty pleas. Higher totals come from Harvey’s own claims and additional suspected deaths that were not all independently proven.

Mercy killer vs. compulsive killer: Harvey sometimes said he ended suffering. Prosecutors and a psychiatrist retained by the prosecution described a much darker pattern involving control and gratification, while documented attacks outside the terminal-patient setting undermine a simple mercy narrative.

The “smell of almonds” version: Retellings sometimes reduce the breakthrough to a dramatic odor noticed during John Powell’s autopsy. The defensible historical point is that Powell’s autopsy raised suspicion of cyanide and toxicological evidence established poisoning.

Instant prison death: Harvey did not die immediately in his cell. He was attacked on March 28, 2017 and died on March 30.

MORBID FACTS

One autopsy cracked open years of killing. John Powell’s death looked medically plausible until cyanide evidence turned it into a homicide investigation.

The hospital made murder easier to hide. Many victims were already seriously ill, and prosecutors said Harvey often selected people whose deaths were unlikely to trigger autopsies.

Cyanide was only part of his arsenal. Contemporary cases documented arsenic, rat poison, cleaning fluid, suffocation and interference with medical equipment in addition to cyanide.

Food and medical equipment became weapons. The 1987 victim list described poison placed in pudding, dessert, orange juice, feeding tubes and intravenous lines.

He did not limit himself to dying patients. Some documented victims and attempted victims were people from Harvey’s personal life, including his roommate and members of his roommate’s family.

The body count is still uncertain. Thirty-seven murders were established in court, while Harvey claimed substantially more. The higher number cannot be treated as equally proven.

He nearly reached parole eligibility only in old age. Ohio prison records list an 80-years-to-life aggregate sentence and a 2043 parole-eligibility date.

His own life ended as a homicide. After nearly three decades in prison, Harvey was fatally beaten inside Toledo Correctional Institution in March 2017.

WHAT WE CAN VERIFY

CONFIRMED: Ohio Department of Rehabilitation and Correction records identify Donald Harvey as offender A199449 and document numerous Hamilton County aggravated-murder convictions.

CONFIRMED: Harvey’s prosecutions in Ohio and Kentucky established 37 murders through guilty pleas.

CONFIRMED: On August 18, 1987, Harvey pleaded guilty in Hamilton County to 24 aggravated murders, four attempted aggravated murders and one felonious assault.

CONFIRMED: John Powell’s March 1987 death at Drake Memorial Hospital involved cyanide and became the case that exposed Harvey’s wider pattern of killings.

CONFIRMED: Documented methods included cyanide, arsenic, rat poison, other toxic substances, suffocation and interference with medical care or equipment.

IMPORTANT: Claims that Harvey killed more than 37 people come from his own admissions and additional suspected cases; those higher totals were not all independently established in court.

IMPORTANT: The label 'mercy killer' is incomplete. Documented attacks included personal acquaintances and relatives of Harvey’s roommate as well as seriously ill hospital patients.

CONFIRMED: Ohio prison records list Toledo Correctional Institution as Harvey’s final institution and his status as Released - Death.

CONFIRMED: Harvey was attacked inside Toledo Correctional Institution on March 28, 2017 and died on March 30.

IMPORTANT: The true number of Harvey’s victims remains uncertain; 37 is the strongest court-established count.

SOURCES

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