ST. CLOUD — A Moorhead man is accused of fatally poisoning his St. Cloud roommate, according to a news release from the St. Cloud Police Department.

Stuart William Hanmer, 35, was arrested on Wednesday, Sept. 3, in Moorhead, according to the news release. He is being held at the Stearns County Jail pending formal charges.

Police say Cody Ernst, 33, of St. Cloud, was admitted to the University of Minnesota Hospital in Minneapolis in critical condition on June 20. Medical staff determined that Ernst had "an extremely high and lethal level of the heavy metal thallium in his system," according to the release.

Thallium is a metal used in superconductors. Thallium poisoning can include hair loss, numbness and pain in the feet and hands, gastrointestinal effects and heart problems, according t

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