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CEO charged in Oakland County hyperbaric chamber explosion death posts $2 million bond

Woman charged with second-degree murder, involuntary manslaughter

The CEO and founder of the Oakland County health care facility where a 5-year-old boy died in a hyperbaric chamber explosion posted bond on Wednesday.

According to court records, Tamela Peterson posted her $2 million bond and was released from jail just after 1 p.m. on April 9, 2025.

Thomas Cooper, 5, was receiving treatment inside a hyperbaric chamber at the Oxford Center in Troy on Jan. 31, 2025, when it exploded, killing him.

Peterson was charged with second-degree murder and involuntary manslaughter.

Read more: The text, photos Oxford Center CEO is accused of sending after 5-year-old died in hyperbaric chamber

Three other workers have also been charged and posted bond, as well.

The center’s safety manager, Jeffrey Mosteller, 64, of Clinton Township, was released on March 31. He was initially given a $250,000 bond, but it was lowered to $50,000.

Gary Marken, 65, of Spring Arbor, the primary management assistant, and Aleta Moffitt, 60, of Rochester Hills, posted bond and were both released early in March. Marken was given a $250,000 bond, while Moffitt received a $100,000 bond.

Marken and Mosteller were also charged with second-degree murder, while Moffitt was charged with involuntary manslaughter and falsifying medical records.

All four defendants are expected to appear in court again on April 30.

Click here for all of our coverage on the hyperbaric chamber explosion.


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