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Case Description

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Who poisoned Frederich H. Cassel in 1972?
In the autumn of 1972, a shadow of unease began to fall over the life of Frederich H. Cassel, a 50-year-old Caucasian man residing in the Applewood area of Jefferson County, Colorado. On November 3rd, what started as a complaint of chest congestion would set in motion a series of events culminating in his untimely death. His health concerns led to a hospitalization on November 9th, and after a period of apparent recovery, he was released on November 30th. However, the reprieve was short-lived. By December 8th, Cassel was readmitted to the hospital, this time grappling with shortness of breath and renewed chest congestion. Three days later, on December 11, 1972, Frederich Cassel died.

The circumstances surrounding his death were immediately suspicious, prompting an autopsy. The toxicology report revealed a sinister truth: Frederich Cassel had been poisoned. This discovery transformed a seemingly natural death into a homicide investigation. Cassel was not just any citizen; he was an employee of the General Service Administration at the Federal Center in Lakewood, a position that afforded him top-secret security clearance. His work had previously taken him to San Francisco and Washington, D.C. In the time leading up to his death, Cassel had confided in his colleagues, speaking of unusual occurrences in his life. He meticulously documented these strange events in a personal diary.

Despite the clear evidence of foul play and the intriguing leads from Cassel's own writings, his case has remained unsolved for decades. The Jefferson County Sheriff's Office lists his death as a cold case homicide. His diary reportedly contained suspicions he held regarding his wife and other men. However, no arrests have ever been made, and no suspects have been publicly named in connection with the poisoning of Frederich Cassel. The story of his slow and deliberate murder, whispered in the pages of his diary and confirmed by the coroner's findings, remains a mystery, a cold case file waiting for a break that has yet to come.