TROY, Mich. (WXYZ) — Three people have been charged with second-degree murder and one person has been charged with involuntary manslaughter in connection with the explosion of a hyperbaric chamber that killed a 5-year-old boy who was inside it.
The explosion happened on Jan. 31, when Thomas Cooper, 5, was receiving hyperbaric oxygen treatment at The Oxford Center in Troy.
Four people were arrested on Monday, Troy police said. It's unclear at this time what exactly led up to the arrests.
Michigan Attorney General Dana Nessel announced the charges on Tuesday morning.
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Oxford Center CEO Tami Peterson, safety director Jeff Mosteller and primary manager Gary Marken have been charged with second-degree murder. They were all arraigned on Tuesday afternoon. Peterson was given a $2 million bond while Mosteller and Marken were given $250,000 bonds.
See their arraignments in the video below
Aleta Moffitt, the operator of the hyperbaric chamber, has been charged with one count of involuntary manslaughter and intentionally providing false information on a medical record.
All four people are currently being held and will be transported to the Oakland County Jail after their respective trials.
“This tragedy could have been prevented if proper safety protocols were followed,” Nessel said. “Instead, deliberate negligence and a blatant disregard for safety cost a child his life. I appreciate the investigatory efforts of the Troy Police Department. My office remains committed to seeking justice for Thomas and holding those responsible accountable.”
The Oxford Center released the following statement about the charges:
After cooperating with multiple investigations starting immediately after the tragic accident in January, we are disappointed to see charges filed.
The timing of these charges is surprising, as the typical protocol after a fire-related accident has not yet been completed. There are still outstanding questions about how this occurred. Yet, the Attorney General’s office proceeded to pursue charges without those answers.
Our highest priority every day is the safety and wellbeing of the children and families we serve, which continues during this process.
Thomas’s family is being represented by Fieger Law.
James Harrington, managing partner at Fieger Law, told us in February that Thomas had received 35 treatments and the explosion happened during his 36th treatment.
Previous coverage: Attorney for family of 5-year-old boy killed in hyperbaric chamber speaks out
"Under no circumstances should anything like this ever happen — ever," Harrington previously told us. "When we met with the family, it was one of the most heartbreaking things I’ve ever seen."
Thomas’s mother was also reportedly in the room and sustained some injuries to her arms.
Previous coverage: 5-year-old boy killed in hyperbaric chamber explosion loved running, swimming; GoFundMe set up for family
Officials say the chamber contains 100% oxygen, which is five times the amount of oxygen in a normal room, and can be “extremely combustible.”
According to The Oxford Center website, the therapy is a "specialized form of medical treatment administered by delivering 100% pure oxygen to the body through increased atmospheric pressure greater than 1.3 ATA in an enclosed hard chamber."
According to a GoFundMe page, Thomas loved life, running, and swimming, and he liked to draw and figure out how things worked. Thomas leaves behind his mom, dad, and younger brother.
