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. Under a plea and sentencin g agreement submitted to the court, Mosteller will serve between […] Safety Director In Michigan Pleads No Contest In Fatal Hyperbaric Chamber Explosion ...read more read less