The chilling murder of a Minnesota man using the rare poison thallium highlights vulnerabilities in sober living facilities.
Story Highlights
- Stuart Hanmer charged with second-degree murder for poisoning roommate Cody Ray Ernst.
- Thallium, a rare and hard-to-detect poison, was used in the crime.
- Digital evidence like internet searches played a crucial role in the investigation.
- Concerns raised about safety measures in sober living facilities.
The Rare Use of Thallium in Modern Crime
In a rare and chilling case, 35-year-old Stuart Hanmer has been charged with second-degree murder for allegedly poisoning his roommate, Cody Ray Ernst, at a sober living facility in St. Cloud, Minnesota. The murder weapon was thallium, a highly toxic heavy metal once used in rat poison and pesticides, now found mainly in electronics. Its tasteless and odorless characteristics make it a notorious choice for poisoning, although its use is exceptionally rare in the U.S. due to strict regulations.
Digital Evidence as a Key Investigative Tool
The investigation into Ernst’s death, which occurred in June 2025, was heavily reliant on digital forensics. Investigators discovered that Hanmer had conducted internet searches related to thallium and made purchases of the substance online. This digital footprint proved crucial in piecing together the events leading to the murder, highlighting the vital role of modern technology in solving crimes. Such evidence is increasingly important in contemporary investigations, where online activities can provide clear insights into criminal intent.
Implications for Sober Living Facilities
The murder has sparked concerns about the safety and screening processes within sober living facilities, which often house vulnerable populations. Ernst’s death underscores the need for stricter regulations and improved safety protocols to prevent such tragedies. The incident also brings to light the potential risks faced by residents in these environments, emphasizing the necessity for comprehensive background checks and better oversight.
The impact of this case extends beyond the immediate tragedy. There are calls for policy reviews regarding the accessibility of toxic substances and the online marketplaces that sell them. Additionally, the sober living and transitional housing sectors may face increased scrutiny and regulatory measures to ensure resident safety. These discussions are crucial for safeguarding vulnerable communities and preventing future incidents.
