The Brief A 58-year-old Arizona man, Ronald Olson, was found unresponsive at O’Hare Airport Friday morning and later pronounced dead at a nearby hospital. An Arizona man has died after being found unresponsive at O'Hare International Airport on Friday morning, authorities said. He was later pronounced dead. The Cook County Medical Examiner’s Office identified him as 58-year-old Ronald Olson of Garden Grove, Arizona. In April, a man was found dead on a CTA Blue Line train at the airport and just days later, another man died after becoming unresponsive on a plane.