`` Sweatbox '' retreat claims third victim , a Arizona woman . She died at the Flagstaff Medical Center , the Yavapai County Sheriff 's Office said . Retreat participants fell ill after spending late Saturday in hot , dome-like structure . Sweatbox program was led by self-help guru Ray . Police are conducting a homicide investigation into `` sweatbox '' deaths .
`` Sweatbox '' retreat claims third victim , a Arizona woman . Retreat participants fell ill after spending late Saturday in hot , dome-like structure . Sweatbox program was led by self-help guru Ray . Police are conducting a homicide investigation into `` sweatbox '' deaths .