Ex-safety manager given 19 months’ prison over five-year-old’s hyperbaric chamber fire death
Jeffrey Mosteller pleaded no contest to charges relating to burning death of Thomas Cooper in Michigan A former safety manager has been sentenced to one year and seven months in prison in connection with the death of a five-year-old Michigan boy who was killed in a fiery January 2025 explosion inside a hyperbaric oxygen chamber. Jeffrey Mosteller, 66, received that sentence after pleading no contest to involuntary manslaughter in Oakland county circuit court in Michigan on Monday.
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