4 Workers Charged in Hyperbaric Chamber Explosion that Killed 5-Year-Old Boy

The CEO and three other workers who were charged after a 5-year-old boy was killed in a hyperbaric chamber explosion at an Oakland County health care center are scheduled to appear in court Tuesday as their preliminary examination continues.

Tamela Peterson, 59, of Brighton, Jeffrey Mosteller, 65, of Clinton Township, Gary Marken, 66, of Spring Arbor and Aleta Moffitt, 61, of Rochester Hills, were charged after Thomas Cooper was killed when the hyperbaric chamber he was receiving treatment in exploded at the Oxford Center in Troy on Jan. 31, 2025. The boy’s mother was also injured in the explosion.

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