Walter Foxcroft, 43, was found dead inside a hyperbaric chamber at the Arizona facility he co-founded last year.

Arizona physical therapist Walter Foxcroft dies in a hyperbaric chamber fire at his Lake Havasu clinic. Learn about the risks of oxygen therapy and community tributes.

However, the press release confirmed that the caller was aware that Foxcroft was inside the hybaric chamber.The fire is being investigated by detectives with the Lake Havasu City Police Department and fire investigators.