Overview
- Judge Maureen McGinnis found probable cause to send Tamela Peterson, Jeffrey Mosteller, Gary Marken, and Aleta Moffitt to circuit court over the Jan. 31, 2025 fatal explosion in a Troy hyperbaric chamber.
- Peterson, Mosteller, and Marken face second-degree murder with alternative involuntary manslaughter counts, while Moffitt is charged with involuntary manslaughter and falsifying medical records.
- The judge cited a pattern of decisions inconsistent with industry standards and years of ignored staff warnings about grounding straps, finding the evidence met the probable-cause threshold.
- Detectives testified that videos showed the child never wore a grounding bracelet across 35 sessions, grounding straps were found unused in a junk drawer, and items like a dryer-warm blanket and polyester materials were used.
- Fire investigators and hyperbaric experts said static discharge was the likely ignition source and that grounding straps would have greatly reduced risk, while the defense argued the exact cause remains unproven and key reports are unfinished.