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2:58, 10 February 2018

Las Vegas Gunman’s Brain Exam Only Deepens Mystery of His Actions

Las Vegas Gunman’s Brain Exam Only Deepens Mystery of His Actions


Stephen Paddock, the 64-year-old gunman who killed 58 concertgoers in Las Vegas last October in the worst mass shooting in modern American history, had not had a stroke, brain tumor or a quantity of other neurological disorders that may well have helped explain his actions, a recent examination of the remains of his brain showed.

Mr. Paddock’s brain did have adjustments frequently observed in Americans of his age, such as proof of atherosclerosis — fatty plaques inside blood vessels that can impair circulation, which brain cells rely on to survive. Scattered on the surfaces of his brain had been an abnormally high number of tiny deposits that have a tendency to improve with age and accompany some neurological diseases.

The brain examination was carried out by Dr. Hannes Vogel, the director of neuropathology at Stanford University. Dr. Vogel mentioned he was able to carry out an sufficient evaluation, despite harm triggered by Mr. Paddock’s fatal, self-inflicted gunshot wound to the head.

“With a great deal of screening, I didn’t see anything,” he stated, that could explain why Mr. Paddock became a calculating mass killer.

Even though specialists had deemed it unlikely that a brain examination would supply answers to what led Mr. Paddock, to commit a mass shooting, physicians throughout the country had proposed ruling out more than a half-dozen problems that may possibly possibly be implicated. Dr. Vogel located none of them.

There was no proof of frontotemporal lobar degeneration, which impacts “executive functions,” such as selection-generating and social interactions, and can lead to character changes and unrestrained behavior. That disease would most likely have been inconsistent with somebody able to engage in meticulous preparing.

Mr. Paddock had complained to friends of feeling ill, in pain and fatigued, according to a preliminary report on the police investigation released final month. Mr. Paddock’s girlfriend, Marilou Danley, told investigators that he had grown much more distant over the year ahead of the shooting. The law enforcement report described Mr. Paddock as “germaphobic” and strongly reactive to smells.

A principal care doctor in Las Vegas — who stated he had been Mr. Paddock’s doctor given that 2009 and had last noticed him as a patient roughly a year prior to the shooting — told officials that he suspected Mr. Paddock had bipolar disorder. That psychological disorder, however, cannot be identified in a typical post-mortem examination of brain structures. And whilst some studies have shown that men and women with bipolar disorder are a lot more likely to have a history of violent behavior than the common public, the majority of them do not, and the relationship in between mental health and violence involves several other elements.

The medical professional, who was not named in the report, also described Mr. Paddock as possessing behaved oddly, displaying tiny emotion and expressing worry of medicines. Mr. Paddock had refused prescriptions for antidepressants, but the physician had prescribed anti-anxiety medicine for him.

An autopsy report showed he did have anti-anxiousness medication in his program, according to The Las Vegas Review-Journal, which obtained the report on Friday.

The examination showed that the surfaces of Mr. Paddock’s brain contained modest spheres which can be noticed on sections treated with a stain. The structures, made up mostly of carbohydrates but also containing proteins and other components, are known as corpora amylacea. “Most folks would have them at that age, but not in that profusion,” Dr. Vogel mentioned. “It’s a striking exaggeration of an age-related finding.”

The lead to and which means of the structures remain mysterious, the subject of ongoing study. They appear as folks grow older and are located at greater density in the brains of patients with Alzheimer’s illness, numerous sclerosis and epilepsy, amongst other disorders. Dr. Vogel searched for signs of those illnesses, but he did not detect them in Mr. Paddock’s brain.

Three scientists who study corpora amylacea mentioned in interviews that the increased presence of the structures was substantial. “If you have high numbers of these, something’s not standard,” mentioned Troy Rohn, a professor of biology at Boise State University.

Other scientists believe the structures are akin to wastebaskets that contain remnants of broken-down cells or even hazardous substances.

Dr. Hyman Schipper, a professor of neurology at McGill University in Montreal, said his laboratory’s research have located evidence that corpora amylacea can result from the damage triggered by unstable molecules recognized as free radicals, which can be unleashed by various stressors. “It’s telling you some thing and it could be very important,” Dr. Schipper said of the finding in Mr. Paddock’s brain.

Even so, Dr. Vogel, the Stanford neuropathologist, stated the results of his examination must reassure the public that Mr. Paddock’s physicians had not missed diagnosing a tumor or other key brain disorder that could have been treated.

The Clark County coroner’s workplace had sent 129 brains to Stanford for examination prior to Mr. Paddock’s. Generally they arrive by FedEx, but with heavy public interest in Mr. Paddock’s case, the coroner, John Fudenberg, hand-delivered the brain — and Dr. Vogel has been asked to return it in individual.


Published at Sat, 10 Feb 2018 02:05:13 +0000

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Shots Fired in Terminal 2: A Witness to the Fort Lauderdale Airport Shooting Reflects on America's Mass Shooting Epidemic

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