Wyoming Researcher Accused of Poisoning Lab Colleague

A 32-year-old graduate student at the University of Wyoming is being held on a $1.5 million cash-only bond after authorities say she contaminated a fellow researcher’s drink with a potent neurotoxin, then attempted to board an international flight to China as investigators closed in.

Aili Wang was arrested Oct. 6 at Los Angeles International Airport, one day after campus police questioned her about unexplained illnesses plaguing a male colleague in their shared microbiology laboratory. Federal and local prosecutors successfully petitioned to raise her initial $200,000 bail, citing the discovery of multiple laptops, external hard drives, physical records and written materials in her possession at the time of her arrest.

The victim, a doctoral candidate from Vietnam specializing in RNA delivery systems for cancer, neurological and genetic disease treatments, began experiencing severe fatigue, insomnia and cognitive impairment shortly after returning from an academic conference in August. His symptoms persisted for weeks without explanation until his wife tested water drawn from the coffee maker he routinely used to brew tea.

That test revealed acrylamide, a chemical compound classified as a probable human carcinogen by the International Agency for Research on Cancer. Acrylamide forms naturally when starchy foods are cooked at high temperatures, but in its pure, synthesized industrial form — which investigators allege Wang purchased through eBay — it acts as a cumulative neurotoxin. Once absorbed, it binds to nerve proteins and degrades motor function and cognition. There is no antidote, and neurological damage caused by chronic exposure can be permanent.

Suspicion fell on Wang after the victim, aware of his deteriorating health, installed hidden surveillance cameras near his workstation. Footage captured on Oct. 1 allegedly shows Wang rinsing the man’s mug with liquid poured from her own cup. The same recordings purportedly show her searching through his desk, photographing documents and handling his research notebooks. Wang had not been assigned active laboratory duties since June, according to Mark Gomelsky, the microbiology professor who supervised both students. She was instead focused on writing her dissertation after failing her first defense.

Gomelsky told reporters the victim had recently achieved a breakthrough in using bacteria to deliver RNA into human cells, a development that drew significant attention within their federally funded research program. When campus police confronted Wang on Oct. 5, she reportedly stated she had not handled acrylamide in years.

Tak Sumaya, an assistant professor at the university who assisted in identifying the chemical found in the victim’s water, confirmed the targeted researcher was developing what he described as a promising cancer therapy method.

Laboratory sabotage remains a rare but persistent vulnerability in U.S. academic research environments. Unlike pharmaceutical manufacturing or federal biodefense facilities, university laboratories often operate with decentralized oversight, relying heavily on the honor system among graduate cohorts. The ease of acquiring toxic industrial chemicals through commercial e-commerce platforms has compounded security concerns, particularly in labs where researchers work in close proximity on competitive, high-stakes projects.

Wang faces a single count of aggravated assault and battery under Wyoming state law. A conviction carries a maximum sentence of 10 years in prison and a $10,000 fine. University President Shane Reeves issued a statement affirming the institution’s commitment to campus safety.

Wang remains in custody awaiting formal arraignment in Laramie County.