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Never - before - examine documents from an autopsy on assassinated U.S. President William McKinley bring out that after the president ’s death , a doctor perform maverick experiment in which he injected bacterial samples from the President of the United States ’s wounds into rabbit and a dog . The notation are now on sale for the first meter .

On Sept. 6 , 1901 , Leon Czolgosz shot President McKinley twice at closelipped range while feigning to shake his hand at the Pan - American Exposition in Buffalo , New York . The first bullet safely ricochet off a clit on the twenty-fifth president ’s jacket but the second enter his abdomen , piercing the front and back walls of his tum . McKinley was rush to a nearby infirmary where gynaecological surgeon Dr. Matthew Mann execute surgical procedure on the prexy . After initially showing sign of make a full recovery and moving out of the infirmary , McKinley ’s condition suddenly worsen , and he died on Sept. 14 , according toPBS . ( Czolgosz was afterwards sentenced to last by the electric chair . )

A collection of letters, notebooks and other documents lying on a table

The newly revealed documents include letters, telegrams, a notebook and other items related to President McKinley’s death.

Doctor of the Church said the lawsuit of death was pancreatic sphacelus , ornecrotizing pancreatitis — a complication in which part of the pancreas die due to continuing infection , damage or lack of blood flow .

Mann was later criticized by numerous health practitioners for the operating theater he perform . composition indicate he left the smoke inside McKinley and did not properly clean or end the wound , which could have caused an contagion that led to the necrosis .

The fact that McKinley lingered so long before dying spark off far-flung rumors at the prison term , with meditation that Czolgosz had shot McKinley with poison or bacterium - laced bullet train . Some conspiracy theorists still consider this today andalso intend that Czolosz may not have been cultivate alone .

An illustration of President McKinley’s assassination

An illustration of what McKinley’s assassination may have looked like.

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To play down these rumor , a " bacteriological examination " was ordered in addition to the standard autopsy . Dr. Herman Matzinger — aleading expert on pedigree analytic thinking at the time — carried out this surplus examination ; and he concluded that no toxicant was used and that the mortification was likely because of the initial shooting and not the botched operating theatre .

On Jan. 9 this year , the Raab Collection — an auction site for historical documents — heel a collection of Matzinger ’s personal papersrelating to the secondary examination , which were recently name by the doctor ’s rest family . The document include a notebook computer , letters , receipts of samples , telegrams , an annotated transcript of his original report and an invitation to a memorial religious service for President McKinley . They have been put on sale for $ 80,000 .

A portrait of William McKinley

President McKinley was on office from March 1897 until his death. He was succeeded by Theodore Roosevelt.

Matzinger ’s documents mainly show how he came to the conclusions pose out in his original story . But they also include some surprises , including the unexpected favorite experiment .

In his notebook computer , Matzinger account how he grew " off-white " bacteria cultures from swab samples taken from McKinley ’s wounding and then come in them into rabbits and a Canis familiaris . It is undecipherable if these animals were his personal pet or laboratory animals , or how he thought they would address the question of whether the bullets were laced with poison or bacterium .

The papers do n’t say what happen to the rabbits . But Matzinger monitored the dog over the next few days , writing that its body temperature was around 104 degrees Fahrenheit ( 40 point Celsius ) — which is above average for a dog , consort to theAmerican Kennel Club — but that it was " dissemble well . "

Front (top) and back (bottom) of a human male mummy. His arms are crossed over his chest.

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Researcher examining cultures in a petri dish, low angle view.

The documents also reveal details of how Matzinger examined the weapons and bullets used by Czolgosz and how the physician analyse McKinley ’s stock for signs of toxicant .

letter between Matzinger and Dr. P.M. Rixey , who oversaw the autopsy process , revealed that Rixey tried to hurry Matzinger for his results . However , the medico took his time reaching his ending : His final report was commit to Rixey on Oct. 2 , 1901 , 18 days after McKinley died .

The Matzinger collection provides an highly rare perceptiveness into how postmortem of richly - ranking people were carry out in the past . These types of documents are " virtually impossible to find , " Raab voice indite in the collection ’s listing . They are " a treasure . "

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