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Angels of Death: 6 More Medical Murderers

In this third installment of Angels of Death, we'll take a look at several serial medical murderers you may have never heard of. They each left a trail of victims behind them and a lot of unanswered questions.

Small Town Nurse

The locals were shocked when nurse Vickie Dawn Jackson was arrested for a series of murders at Nocona General Hospital in Nocona, Texas. After almost a year of exemplary service, Jackson began injecting patients with mivacurium chloride, a muscle relaxant. Over a two-month period, she may have killed twenty patients. The victims included people she had known for years. Her husband's grandfather was a victim. Jackson was fired after a would-be victim survived and complained that she gave him unauthorized medication that made him pass out. An investigation led to ten murder charges. However, the trial was stopped before it began when Jackson pleaded no contest to the charges, and received a life sentence. Jackson still says she is innocent.

The Would-be Hero

250angelo.jpgMost of the medical killers profiled today killed for reasons that will remain a mystery. Richard Angelo had a motive. He wanted to play the hero by rescuing patients in distress, only he caused the distress by injecting victims with the muscle relaxer Pavulon and sometimes couldn't save them. Angelo worked as a night shift nurse at Good Samaritan Hospital in New York, where 37 code blue emergencies saw the deaths of 24 patients during his shift. One patient managed to call for help after Angelo injected him with Pavulon and Anectine. An investigation followed, in which the nurse's home was searched and the drugs in question were found. Angelo was eventually charged in four deaths. His defense was that he suffered from multiple personality disorder, but the evidence was the result of polygraph tests, which the judge did not allow. He was convicted and sentenced to 61 years to life.

Murder as Sexual Thrill

200graham_g.jpgGwendolyn Gail Graham was a nurses aide at Alpine Manor Nursing Home in Walker, Michigan. She had a lesbian relationship with her immediate supervisor, Catherine May Wood. The couple practiced erotic asphyxiation, and began killing elderly patients to achieve a sexual thrill. Graham would smother a victim while Wood stood guard, then they would stop for a sexual interlude together. They even bragged about their activities, but coworkers did not believe them. Eventually, Graham put pressure on Wood to commit a murder herself, which led to the couple splitting. Graham left town, and Wood confessed to her ex-husband. A year later, he approached police with the story. The following investigation unearthed eight suspicious deaths, five of which yielded enough evidence to take to trial. Wood testified against Graham in return for a reduced sentence. Graham received six life sentences; Wood drew 20 to 40 years.

Two-month Nursing Spree

100DIAZ.jpgRobert Diaz wanted to be called Dr. Diaz, even though he was a nurse. Diaz held a series of temporary nursing jobs in Los Angeles, Riverside, and San Berardino Counties in California in 1981. At each hospital, an unusual spike in the death rate coincided with his employment. Twelve dead patients exhibited a high level of the heart drug lidocaine. A search of Diaz' home found vials and syringes of lidocaine in concentrations ten times as high as their labels indicated. He was arrested on twelve counts of murder committed in a two-month period. A judge found him guilty of all counts in 1984 and sentenced him to execution. Diaz is still on death row at San Quentin.

Don't Breathe

244Saldivar.jpgEfren Saldivar was a respiratory therapist who confessed to killing around 50 people between 1988 and 1998. Saldivar would inject one of several paralytic medicines into his patients, which caused breathing, or the heart, to stop. His early victims were undetected because he killed only patients who were near death, so the death rate on his shift wasn't noticeably abnormal. Still, the staff at Glendale Adventist Medical Center had suspicions. Co-workers once broke into Saldivar's locker to play a prank and found drugs and syringes he did not have legal access to. They didn't report the find for fear of getting into trouble. After an informant approached the hospital with second-hand knowledge of the staff's suspicions, police were called in to investigate. During his first contact with police, Saldivar, who was connected to a polygraph, started telling stories of how he killed terminal patients out of compassion. Within a few days, he recanted his confessions. Police spend a year and a half looking for evidence in exhumed bodies, and built a murder case around six suspicious deaths in which the bodies had high levels of Pavulon, a derivative of curare that paralyzes the respiratory system. In 2002, Saldivar pleaded guilty to six counts of murder and received life in prison.

Orderly Murder

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Donald Harvey claims to have murdered 87 people during his 17 year career as a hospital orderly. He began working at Marymount Hospital in London, Kentucky when he was eighteen years old. Harvey later confessed to killing at least a dozen people in his ten months there. The first victim, according to Harvey, rubbed feces in his face, angering the orderly so much he strangled the patient. No investigation followed. Harvey used a variety of methods to kill patients: poison, overdoses of medication, strangulation, turning off or misusing equipment, and introducing infections. He was arrested for burglary, served a short time in the army, and  was in a mental ward for a time before working at a couple of Lexington, Kentucky hospitals where he had little opportunity to kill. Harvey later worked at the Cincinnati V.A. Hospital and Drake Memorial Hospital in Cincinnati. At both hospitals, unusual numbers of deaths took place during his shift. He also used poison on his lover, Carl Hoeweler, and both of Hoeweler's parents. Hoeweler's father died as a result. After one suspicious patient death, Harvey's home was searched. Police found various poisons and his incriminating diary. Harvey confessed to dozen of murders in order to avoid the death penalty. He pleaded guilty to 25 counts of murder and received four consecutive life sentences. Harvey earned an additional eight life sentences with a guilty plea in Kentucky. Later, an Ohio court added another three life sentences. There were also sentences for attempted murder and assault. His first scheduled parole hearing will be in 2047.

For stories of more medical mayhem, see Angels of Death: 8 Medical Murderers and Angels of Death: 7 More Medical Murders.

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Dodo: © Oxford University, Oxford University Museum of Natural History. Background: iStock
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Head Case: What the Only Soft Tissue Dodo Head in Existence Is Teaching Scientists About These Extinct Birds
Dodo: © Oxford University, Oxford University Museum of Natural History. Background: iStock
Dodo: © Oxford University, Oxford University Museum of Natural History. Background: iStock

Of all the recently extinct animals, none seems to excite the imagination quite like the dodo—a fact Mark Carnall has experienced firsthand. As one of two Life Collections Managers at the UK's Oxford University Museum of Natural History, he’s responsible for nearly 150,000 specimens, “basically all the dead animals excluding insects and fossils,” he tells Mental Floss via email. And that includes the only known soft tissue dodo head in existence.

“In the two and a bit years that I’ve been here, there’s been a steady flow of queries about the dodo from researchers, artists, the public, and the media,” he says. “This is the third interview about the dodo this week! It’s definitely one of the most popular specimens I look after.”

The dodo, or Raphus cucullatus, lived only on the island of Mauritius (and surrounding islets) in the Indian Ocean. First described by Vice Admiral Wybrand van Warwijck in 1598, it was extinct less than 100 years later (sailors' tales of the bird, coupled with its rapid extinction, made many doubt that the dodo was a real creature). Historians still debate the extent that humans ate them, but the flightless birds were easy prey for the predators, including rats and pigs, that sailors introduced to the isolated island of Mauritius. Because the dodo went extinct in the 1600s (the actual date is still widely debated), museum specimens are very, very rare. In fact, with the exception of subfossils—the dark skeletons on display at many museums—there are only three other known specimens, according to Carnall, “and one of those is missing.” (The fully feathered dodos you might have seen in museums? They're models, not actual zoological specimens.)

A man standing with a Dodo skeleton and a reconstructed model of the extinct bird
A subfossil (bone that has not been fully fossilized) Dodo skeleton and a reconstructed model of the extinct bird in a museum in Wales circa 1938.
Becker, Fox Photos/Getty Images

Since its extinction was confirmed in the 1800s, Raphus cucullatus has been an object of fascination: It’s been painted and drawn, written about and scientifically studied, and unfairly become synonymous with stupidity. Even now, more than 300 years since the last dodo walked the Earth, there’s still so much we don’t know about the bird—and Oxford’s specimen might be our greatest opportunity to unlock the mysteries surrounding how it behaved, how it lived, how it evolved, and how it died.

 
 

To put into context how old the dodo head is, consider this: From the rule of Oliver Cromwell to the reign of Queen Elizabeth II, it has been around—and it’s likely even older than that. Initially an entire bird (how exactly it was preserved is unclear), the specimen belonged to Elias Ashmole, who used his collections to found Oxford’s Ashmolean Museum in 1677. Before that, it belonged to John Tradescant the Elder and his son; a description of the collection from 1656 notes the specimen as “Dodar, from the Island Mauritius; it is not able to flie being so big.”

And that’s where the dodo’s provenance ends—beyond that, no one knows where or when the specimen came from. “Where the Tradescants got the dodo from has been the subject of some speculation,” Carnall says. “A number of live animals were brought back from Mauritius, but it’s not clear if this is one of [those animals].”

Initially, the specimen was just another one of many in the museum’s collections, and in 1755, most of the body was disposed of because of rot. But in the 19th century, when the extinction of the dodo was confirmed, there was suddenly renewed interest in what remained. Carnall writes on the museum’s blog that John Duncan, then the Keeper of the Ashmolean Museum, had a number of casts of the head made, which were sent to scientists and institutions like the British Museum and Royal College of Surgeons. Today, those casts—and casts of those casts—can be found around the world. (Carnall is actively trying to track them all down.)

The Oxford University Dodo head with scoleric bone and the skin on one side removed.
The Oxford University Dodo head with skin and sclerotic ring.
© Oxford University, Oxford University Museum of Natural History // Used with permission

In the 1840s, Sir Henry Acland, a doctor and teacher, dissected one side of the head to expose its skeleton, leaving the skin attached on the other side, for a book about the bird by Alexander Gordon Melville and H.E. Strickland called The dodo and its kindred; or, The history, affinities, and osteology of the dodo, solitaire, and other extinct birds of the islands Mauritius, Rodriguez and Bourbon. Published in 1848, “[It] brought together all the known accounts and depictions of the dodo,” Carnall says. The Dodo and its kindred further raised the dodo’s profile, and may have been what spurred schoolteacher George Clark to take a team to Mauritius, where they found the subfossil dodo remains that can be seen in many museums today.

Melville and Strickland described Oxford’s specimen—which they believed to be female—as being “in tolerable preservation ... The eyes still remain dried within the sockets, but the corneous extremity of the beak has perished, so that it scarcely exhibits that strongly hooked termination so conspicuous in all the original portraits. The deep transverse grooves are also visible, though less developed than in the paintings.”

Today, the specimen includes the head as well as the sclerotic ring (a bony feature found in the eyes of birds and lizards), a feather (which is mounted on a microscope slide), tissue samples, the foot skeleton, and scales from the foot. “Considering it’s been on display in collections and museums, pest eaten, dissected, sampled and handled by scientists for over 350 years,” Carnall says, “it’s in surprisingly good condition.”

 
 

There’s still much we don’t know about the dodo, and therefore a lot to learn. As the only soft tissue of a dodo known to exist, the head has been studied for centuries, and not always in ways that we would approve of today. “There was quite some consideration about dissecting the skin off of the head by Sir Henry Acland,” Carnall says. “Sadly there have also been some questionable permissions given, such as when [Melville] soaked the head in water to manipulate the skin and feel the bony structure. Excessive handling over the years has no doubt added to the wear of the specimen.”

Today, scientists who want to examine the head have to follow a standard protocol. “The first step is to get in touch with the museum with details about access requirements ... We deal with enquiries about our collections every single day,” Carnall says. “Depending on the study required, we try to mitigate damage and risk to specimens. For destructive sampling—where a tissue sample or bone sample is needed to be removed from the specimen and then destroyed for analysis—we weigh up the potential importance of the research and how it will be shared with the wider community.”

In other words: Do the potential scientific gains outweigh the risk to the specimen? “This,” Carnall says, “can be a tough decision to make.”

The head, which has been examined by evolutionary biologist Beth Shapiro and extinction expert Samuel Turvey as well as dodo experts Julian Hume and Jolyon Parish, has been key in many recent discoveries about the bird. “[It] has been used to understand what the dodo would have looked like, what it may have eaten, where it fits in with the bird evolutionary tree, island biogeography and of course, extinction,” Carnall says. In 2011, scientists took measurements from dodo remains—including the Oxford specimen—and revised the size of the bird from the iconic 50 pounder seen in paintings to an animal “similar to that of a large wild turkey.” DNA taken from specimen’s leg bone has shed light on how the dodo came to Mauritius and how it was related to other dodo-like birds on neighboring islands [PDF]. That DNA also revealed that the dodo’s closest living relative is the Nicobar pigeon [PDF].

A nicobar pigeon perched on a bowl of food.
A nicobar pigeon.
iStock

Even with those questions answered, there are a million more that scientists would like to answer about the dodo. “Were there other species—plants, parasites—that depended on the dodo?” Carnall asks. “What was the soft tissue like? ... How and when did the dodo and the related and also extinct Rodrigues solitaire colonize the Mascarene Islands? What were their brains like?”

 
 

Though it’s a rare specimen, and priceless by scientific standards, the dodo head is, in many ways, just like all the rest of the specimens in the museum’s collections. It’s stored in a standard archival quality box with acid-free tissue paper that’s changed regularly. (The box is getting upgraded to something that Carnall says is “slightly schmancier” because “it gets quite a bit of use, more so than the rest of the collection.”) “As for the specific storage, we store it in vault 249 and obviously turn the lasers off during the day,” Carnall jokes. “The passcode for the vault safe is 1234ABCD …”

According to Carnall, even though there are many scientific and cultural reasons why the dodo head is considered important, to him, it isn’t necessarily more important than any of the other 149,999 specimens he’s responsible for.

“Full disclosure: All museum specimens are equally important to collections managers,” he says. “It is a huge honor and a privilege to be responsible for this one particular specimen, but each and every specimen in the collection also has the power to contribute towards our knowledge of the natural world ... This week I was teaching about a species of Greek woodlouse and the molluscs of Oxfordshire. We know next to nothing about these animals—where they live, what they eat, the threats to them, and the predators that rely on them. The same is true of most living species, sadly. But on the upside, there’s so much work to be done!”

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How Promoting Handwashing Got One 19th Century Doctor Institutionalized
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Regardless of how often we actually do it, it's common knowledge that washing our hands before eating, after coughing, and after using the bathroom is good for us. But the connection between handwashing and health wasn't always accepted as fact. As Danielle Bainbridge explains in the PBS web series Origin of Everything, the first doctor to campaign for cleanliness in hospitals was not only shunned by other medical professionals, but ended up in an insane asylum.

Prior to the 19th century, handwashing primarily existed in the context of religious ceremonies and practices. It plays a role in Christianity, Islam, Judaism, Sikhism, and Buddhism in some form or another. But washing up to stop the spread of disease wasn't really a thing for most of history. People weren't aware of germs, so instead of microbes, they blamed illness on everything from demons to bad air.

Then, in 1846, a Hungarian doctor named Ignaz Semmelweis made a breakthrough observation. He noticed that women giving birth with the help of midwives were less likely to die than those treated by doctors. He determined that because doctors were also performing autopsies on victims of puerperal fever (a bacterial infection also known as childbed fever), they were somehow spreading the disease to their other patients. Semmelweis started promoting handwashing and instrument sterilization in his clinic, and the spread of puerperal fever dropped as a result.

Despite the evidence to support his theory, his peers in the medical community weren't keen on the idea of blaming patient deaths on doctors. Partly due to his commitment to the controversial theory, Semmelweis was shunned from his field. He suffered a mental breakdown and ended up in a mental hospital, where he died a few weeks later.

Germ theory did eventually become more mainstream as the century progressed, and washing hands as a way to kill unseen pathogens started gaining popularity. Even so, it wasn't until the 1980s that the CDC released the first official guidelines instructing people on best handwashing practices.

If this story suddenly has you in the mood to practice good hygiene, here's the best way to wash your hands, according to experts.

[h/t Origin of Everything]

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