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University of Wisconsin scientist allegedly tried to poison rival lab colleague over promotion: ‘I did it’

Nypost · · 614 words · By Zoe Hussain
AI Misuse Criminal Allegations Workplace Conflict
open_in_new Read the original article: https://nypost.com/2026/04/22/us-news/university-of-wisconsin-scientist-allegedl…

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fact_checkFact-Check Results

11 claims extracted and verified against multiple sources including cross-references, web search, and Wikipedia.

check_circle Corroborated 6
info Single Source 3
help Insufficient Evidence 1
schedule Pending 1
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“Makoto Kuroda, a 41-year-old staff scientist at the university’s Influenza Research Institute in the School of Veterinary Medicine in Madison, was charged with recklessly endangering safety and tampering with a household product”
CORROBORATED
Multiple independent sources (AOL, NBC, Globalnews.ca) confirm Makoto Kuroda, a 41-year-old UW-Madison employee, was charged with recklessly endangering safety and tampering with a household product.
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web search NEUTRAL — Makoto Kuroda, a 41-year-old University of Wisconsin-Madison employee, was taken into custody after the school became aware of a ‘safety issue’ involving the scientist and another employee.
https://www.aol.com/articles/university-scientist-accused-po…
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web search NEUTRAL — The University of Wisconsin–Madison Police Department became aware last week of a safety issue involving two employees in the School of Veterinary Medicine.About the Influenza Research Institute’s saf…
https://news.wisc.edu/information-about-research-employee-ar…
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web search NEUTRAL — University of Wisconsin scientist accused of trying to poison lab colleague who got promotion.According to the complaint, TM and Kuroda met in 2017 and have worked together at the university's Influen…
https://www.nbclosangeles.com/news/national-international/un…
info
“University police officers arrived at the lab on April 6 after receiving a report of possible chemicals discovered in an employee’s water bottle”
SINGLE SOURCE
The provided web search results for this specific claim are completely irrelevant (OnlyFans profiles), providing no evidence regarding the date or nature of the police response.
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https://blog.onlyfans.com/free-onlyfans-accounts/
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web search NEUTRAL — Allison Wojtowecz, known as Alliwo, is an Austin native who’s passionate about fitness and the outdoors. A graduate of The University of Texas at Austin’s Theatre and Dance department, she has experie…
https://blog.onlyfans.com/creators/comedians/allison-wojtowe…
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web search NEUTRAL — OnlyFans is the social platform revolutionizing creator and fan connections. The site is inclusive of artists and content creators from all genres and allows them to monetize their content while devel…
https://onlyfans.com/u541824618
info
“Subsequent testing of TM’s water bottle revealed the water bottle had tested positive for Chloroform.”
SINGLE SOURCE
The search results for this claim discuss general water bottles, COVID-19 tests, and chloroform in a lab setting, but do not mention the specific case of TM's water bottle testing positive for chloroform.
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web search NEUTRAL — Confused by all the water bottles on the market today and want to make sure you get the best one? You're not alone.
https://www.youtube.com/watch?v=h3DkB92_4ts
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web search NEUTRAL — False-positive COVID-19 results hidden problems and costs – The Lancet.
https://www.thelancet.com/journals/lanres/article/PIIS2213-2…
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web search NEUTRAL — But chloroform also kills the indicator bacteria so you have to be careful. Chloroform is much heavier than water. Here's what I recommend: If you have your phage prep in tube of some sort, anything f…
https://www.researchgate.net/post/Will-chloroform-result-in-…
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“The aggrieved scientist also sent an email to a professor in Japanese, his native language, which read, “I did it. I have also informed the person himself. I am very sorry. Makoto Kuroda.””
CORROBORATED
TokyoReporter and other sources confirm Kuroda sent an email in Japanese to a professor admitting 'I did it. I have also told him. I am very sorry.'
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web search NEUTRAL — Shortly after the incident, Kuroda sent an email in Japanese to his superior, a professor at the institute, confessing to the act. “I did it. I have also told him. I am very sorry,” the email read. Ku…
https://www.tokyoreporter.com/international/japanese-researc…
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web search NEUTRAL — Mr. Makoto Kuroda is a renowned wooden chessboard master from Nagoya. He is one of the few chess masters in Japan who is carving and painting chessboard in a...
https://www.youtube.com/watch?v=6wgsbefeKyk
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web search NEUTRAL — Makoto Kuroda, a 41-year-old University of Wisconsin-Madison employee, was taken into custody after the school became aware of a ‘safety issue’ involving the scientist and another employee.
https://www.independent.co.uk/news/world/americas/crime/uw-m…
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“The colleagues, who began working together in 2017, were both promoted at work. But TM was promoted again, and Kuroda was not”
CORROBORATED
Multiple sources (NBC, Globalnews.ca, and others) report that the motive involved a promotion the victim (TM) received that Kuroda did not, and that they had worked together since 2017.
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web search NEUTRAL — A Wisconsin man allegedly confessed to poisoning his co-worker after the victim got a second promotion that he was gunning for. Makoto Kuroda, 41, was charged with recklessly endangering safety after …
https://lawandcrime.com/crime/man-infuriated-he-was-passed-o…
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web search NEUTRAL — TM’s co-worker, Makoto Kuroda, 41, is charged with recklessly endangering safety and tampering with a household product with the intent to kill, injure or endanger the health of another person, accord…
https://www.nzherald.co.nz/world/university-of-wisconsin-lab…
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web search NEUTRAL — TM also informed officers he did not know anyone who used it and did not have issues with anyone at work or any idea who may have added dangerous chemicals to his drink.According to the report, Kuroda…
https://globalnews.ca/news/11811973/poisoning-water-bottle-l…
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“Kuroda allegedly explained to police that he saw TM’s half-full bottle of water on April 5 and went to the lab to retrieve “2 or 3 microliters of PFA mixed with Trizol” from his work fridge.”
CORROBORATED
NBC News and other reports specifically cite the complaint stating Kuroda saw the water bottle on April 5 and used '2 or 3 microliters of PFA mixed with Trizol' from his fridge.
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web search NEUTRAL — He allegedly told officers that he saw a half-full bottle of water on TM's desk on April 5. He then went back to the lab and used a syringe to retrieve "2 or 3 microliters of PFA mixed with Trizol," f…
https://www.nbcdfw.com/news/national-international/universit…
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web search NEUTRAL — Kuroda said that he expected the chemical mix he put in TM’s shoes to cause a rash, and the poisonous cocktail in his water to make him sick. He also admitted to using ChatGPT to learn about the amoun…
https://www.odditycentral.com/news/university-lab-worker-tri…
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web search NEUTRAL — Kuroda allegedly explained to police that he saw TM’s half-full bottle of water on April 5 and went to the lab to retrieve “2 or 3 microliters of PFA mixed with Trizol” from his work fridge.
https://nypost.com/2026/04/22/us-news/university-of-wisconsi…
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“He also employed ChatGPT on his work laptop to calculate the dosage for the poisoning plot.”
CORROBORATED
Multiple sources, including the report on the 'University Lab Worker' and the 'University of Wisconsin scientist' article, state that Kuroda admitted to using ChatGPT to calculate the dosage.
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web search NEUTRAL — Makoto ... Makoto (まこと, マコト) is a unisex Japanese name, although it is more commonly used by males. As a noun, Makoto means "sincerity" (誠) or "truth" (真, 眞).
https://en.m.wikipedia.org/wiki/Makoto
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web search NEUTRAL — Shinkai began his career as a video game animator with Nihon Falcom in 1996, and gained recognition as a filmmaker with the release of the original video animation (OVA) She and Her Cat (1999).
https://en.m.wikipedia.org/wiki/Makoto_Shinkai
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web search NEUTRAL — Makoto continues to tour in support of his music, mostly in Japan, but also across Asia, Europe, and the US. His music is also featured in Polyphony's Gran Turismo series and its spinoff, Tourist Trop…
https://en.m.wikipedia.org/wiki/Makoto_(musician)
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“After the confession, Kuroda was arrested and booked into jail on April 10”
CORROBORATED
Multiple sources (Man Arrested for Poisoning Co-Worker’s Drink, University of Wisconsin scientist allegedly tried to poison rival lab...) confirm he was arrested and booked on April 10.
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web search NEUTRAL — Kuroda was arrested on April 10 and is being held on a $5,000 cash bond.
https://thedailycrime.org/2026/04/15/man-poisoned-co-workers…
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web search NEUTRAL — UW-Madison lab employee arrested for releasing chemical. 10 days ago. By Samantha Calderon.
https://news.google.com/stories/CAAqNggKIjBDQklTSGpvSmMzUnZj…
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web search NEUTRAL — Makoto Kuroda, 41, allegedly confessed to using ChatGPT to help plot the poisoning of his rival colleague over a longstanding grudge. Dane County Sheriff.After the confession, Kuroda was arrested and …
https://nypost.com/2026/04/22/us-news/university-of-wisconsi…
info
“A judge set his bond at $5,000 on the condition that he doesn’t have any contact with TM, surrenders his passport, and stays away from any UW laboratory”
SINGLE SOURCE
While one source mentions a $5,000 cash bond, the specific conditions (passport surrender, no contact with TM, staying away from labs) are not independently corroborated across the provided evidence set, though the bond amount is mentioned.
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“The University of Wisconsin told NBC News that Kuroda is on administrative leave and has had his research and digital and physical university privileges revoked”
INSUFFICIENT EVIDENCE
No evidence was provided in the search results regarding the University of Wisconsin's statement to NBC News about administrative leave or the revocation of privileges.
schedule
“Kuroda will return to court on June 1.”
PENDING
info Disclaimer: This analysis is generated by AI and should be used as a starting point for critical thinking, not as definitive truth. Claims are verified against publicly available sources. Always consult the original article and additional sources for complete context.