Event Brief
Safety manager sentenced over hyperbaric chamber death
By The BriefBrief · Sources (1)
Filed: Sep 04, 2026 at 12:03 PM ET
Summary: Jeffrey Mosteller, 66, the safety manager at the Oxford Center in Michigan, was sentenced to 19 months in prison after pleading no contest to involuntary manslaughter in connection with the death of 5-year-old Thomas Cooper. Cooper died in January 2025 when a hyperbaric oxygen chamber caught fire from inside and exploded during treatment.
WHO: Jeffrey Mosteller
WHAT: Sentenced to 19 months in prison after pleading no contest to involuntary manslaughter tied to a hyperbaric oxygen chamber fire and explosion that killed a 5-year-old boy.
WHEN: Sep 03, 2026 at 8:00 PM ET
WHERE: Oxford Center, Michigan
WHY: The sentence was imposed in connection with the boy’s death during hyperbaric oxygen treatment after the chamber caught fire from inside and exploded.
ℹ️ This event is analyzed using pattern arcs, velocity indicators, and source analysis in our MI Console.
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