Troy police say Tamela Peterson ran away when asked for her cellphone after Thomas Cooper died in a hyperbaric chamber fire at the Oxford Center.

Four people have been charged in the death of a 5-year-old boy who was killed inside a pressurized oxygen chamber that exploded at a suburban Detroit medical facility.

Charges have been filed against four people in the Troy hyperbaric chamber explosion that killed a child. The Pulse discusses what regulations need to come to prevent another tragedy.