Clinic safety manager pleads no contest to involuntary manslaughter in boy’s oxygen chamber death

9 articles, oldest first.

1. WTOP Washington DC

   Clinic safety manager pleads no contest to involuntary manslaughter in boy’s oxygen chamber death ↗ (opens WTOP Washington DC)

   Published Jul 21, 2026

   Same headline from 5 more outlets

   WTOP Washington DC's feed description

   TROY, Mich. (AP) — The safety manager at a suburban Detroit specialty clinic pleaded no contest to involuntary manslaughter Tuesday…

2. Tampa Free Press

   Safety Director In Michigan Pleads No Contest In Fatal Hyperbaric Chamber Explosion ↗ (opens Tampa Free Press)

   Published Jul 21, 2026

   Tampa Free Press's feed description

   Jeffrey Mosteller, the safety director at the Oxford Center in Troy, Michigan, pleaded no contest to one count of involuntary manslaughter on Tuesday following the death of a 5-year-old boy in a hyperbaric chamber explosion, Michigan Attorney General Dana Nessel announced.

3. Michigan Advance

   Safety manager pleads no contest in Oxford Center hyperbaric chamber death ↗ (opens Michigan Advance)

   Published Jul 21, 2026

   Michigan Advance's feed description

   One of the four individuals charged in the death of a five-year-old who burned to death inside a hyperbaric chamber could face up to 15 years in prison. Jeffrey Mosteller, who served as safety manager at the Oxford Center in Troy, entered a no contest plea to one count of involuntary manslaughter in…

4. WZZM Grand Rapids

   Safety director pleads no contest to involuntary manslaughter in Michigan boy's hyperbaric chamber explosion death ↗ (opens WZZM Grand Rapids)

   Published Jul 21, 2026

   WZZM Grand Rapids's feed description

   A hyperbaric chamber at the Troy facility caught fire and exploded while Cooper was undergoing treatment back in January 2025.

Identical headlines usually mean shared wire copy. They are counted as separate articles but are not independent confirmation.