In a startling incident that has raised alarms about campus security and potential broader implications, four individuals—described as Mandarin-speaking and facing serious charges—were arrested following a trespassing call at Western University in London, Ontario. The case, which unfolded in late January 2026, began as a routine security response but quickly escalated into a multi-jurisdictional investigation involving firearms, hazardous chemicals, and “finished high explosives.” While official motives remain undisclosed, investigative reporting by journalist Sam Cooper of The Bureau has highlighted intriguing connections to the university’s engineering programs, including nuclear materials research. This article delves into the timeline, suspects, charges, and emerging details of this developing story.
The Incident Unfolds: From Trespassing to Explosives Discovery
The events began in the early hours of Saturday, January 24, 2026, around 1:40 a.m., when London Police Service (LPS) officers were summoned to assist Western University’s special constable service. A trespasser had been spotted in one of the university’s engineering buildings, leading to a foot pursuit and the immediate arrest of one suspect on campus. During this arrest, police seized a loaded handgun, marking the first red flag in what would become a high-stakes probe.
Officers quickly identified a second suspect linked to the trespassing. This led them to execute a search warrant at a nearby residence on 212 Chesham Avenue, approximately 1.9 kilometres from Western’s main engineering campus. At the home, the second suspect was apprehended, and authorities uncovered a cache of dangerous materials. Court documents describe the haul as “numerous precursor substances and finished high explosives,” prompting immediate safety measures. Two additional suspects were arrested at the scene, bringing the total to four. The residence has remained under police guard since the raid, with specialized equipment—including an excavator and a portable decontamination shower—deployed to handle the hazardous substances. As a precaution, two houses across the street were evacuated, and four buildings on Western’s campus were temporarily closed for several hours following the initial arrest.
London Police Detective Inspector Sean Travis addressed the media on January 27, clarifying that while the materials were indeed explosive in nature, “no explosive devices were found at the residence.” Despite this, the presence of such substances near a major university has sparked concerns about public safety and the potential for more sinister intentions.
The Suspects and Charges: A Closer Look
The four suspects, all requiring Mandarin interpreters during court proceedings, have been identified as follows:
- Jerry Tong, 27, of Gatineau, Quebec: Faces the most extensive list of charges, including carrying a concealed weapon, careless use of a firearm, possession of a loaded firearm, resisting arrest, breaking and entering with intent, occupying a motor vehicle with a firearm, and unlawful possession of explosives.
- Zekun Wang, 26, of London, Ontario: Charged with breaking and entering with intent, occupying a motor vehicle with a firearm, and unlawful possession of explosives.
- Fei (Frank) Han, 25, of London, Ontario: Charged solely with unlawful possession of explosives.
- Feiyang (Astrid) Ji, 21, of London, Ontario: Also charged only with unlawful possession of explosives.
Court records indicate that Han, Ji, and Wang reside at the Chesham Avenue address, while Tong’s primary residence is in Gatineau. All four appeared in court on January 26, 2026, and were remanded into custody pending bail hearings. Their request for Mandarin interpreters underscores their linguistic background, though official reports have not confirmed their nationalities beyond noting they are Mandarin-speaking.
As of January 31, 2026, all suspects remain in custody, with no bail decisions reported. The charges center on possession and firearms offences, but notably absent are any terrorism-related accusations or indications of a specific plot.
Connections to Western University and Nuclear Research: Insights from Sam Cooper’s Reporting
Investigative journalist Sam Cooper, through his outlet The Bureau, has provided some of the most probing coverage of the case, uncovering potential ties between the suspects and Western University. In his report titled “High explosives” seized at London, Ontario home; four Mandarin-speaking suspects charged,” Cooper notes: “The Bureau identified that one suspect’s name matches a student listed on a Western University engineering lab website, which focuses on the mechanics of materials, including research relevant to nuclear reactor applications. Several lab members have worked on Canadian nuclear energy projects.”
This revelation raises questions about whether the trespassing was linked to accessing university resources or materials. Cooper’s investigation points out that an archived profile for a Jerry Tong indicates he completed an Engineering Undergraduate Degree at Western University and grew up in Ottawa, while a Zekun Wang is listed as a student in recent years on the same engineering lab site. However, neither LPS nor Western University has confirmed if these are the same individuals or if any laboratory materials are missing. Western University has stated it is cooperating with police but declined to comment on student affiliations.
Cooper’s work, known for exposing foreign influence and organized crime networks, stops short of outright speculation but emphasizes the lab’s focus on nuclear-relevant research. In a follow-up report on the case’s expansion, he highlights the broader scope without delving into motives, noting the involvement of the Canadian Security Intelligence Service (CSIS) in related inquiries. CSIS responded to The Bureau‘s questions with: “Given the need to protect our sources, tradecraft, and methods, we do not confirm or deny specific investigative details. However, CSIS remains committed to collaborating with security intelligence and law enforcement partners to investigate and counter violent extremist activities.”
Investigation Expands: Multi-Jurisdictional Collaboration
By January 30, 2026, LPS announced that the probe had “spanned multiple cities and provinces,” with additional search warrants executed in Ottawa and Gatineau, Quebec. This expansion involves partnerships with the Ottawa Police Service, Gatineau Police Service, and Sûreté du Québec. In a statement, LPS expressed gratitude for the inter-agency support: “This complex investigation has spanned multiple cities and provinces. We are grateful for the collaboration and support of our law enforcement partners.” A continued police presence on Chesham Avenue is expected as the investigation progresses.
Despite the growing scope, authorities have not released details on the suspects’ intentions or any intended targets. Experts cited in media reports suggest it’s too early to speculate, and no links to terrorism or foreign interference have been officially alleged.
Broader Implications and Ongoing Developments
This incident has ignited discussions on campus security, the handling of hazardous materials, and the potential vulnerabilities in academic research environments, particularly those involving sensitive technologies like nuclear engineering. Sam Cooper’s reporting underscores the need for vigilance, drawing parallels to his broader work on transnational threats, though he avoids direct connections here.
As the case develops, with court proceedings ongoing, the public awaits more clarity on what drove these individuals to amass such dangerous substances near a prominent Canadian university. Anyone with information is urged to contact LPS at (519) 661-5670 or Crime Stoppers anonymously at 1-800-222-TIPS (8477). For now, the story serves as a reminder of the unseen risks lurking in everyday settings, with echoes of larger geopolitical concerns lingering in the background.