Otto Warmbier, the 22-year-old student who was returned in an unconscious state last week from North Korea, died Monday, his family said. Otto Warmbier's doctors at University of Cincinnati Medical Center said last week he had extensive brain damage dating back longer than a year. They said he was in a state of unresponsive wakefulness and was not aware of his surroundings. The doctors who treated Warmbier said they’d agree not to speak about his outlook, but had said he did not require help breathing. The Warmbier family did not say how Otto died.