Accident and death
Richardson was taking a private skiing lesson in Mont-Tremblant in Quebec when she fell on a beginner’s trail, hitting her head on the ground. Despite the fall, witnesses say she did not appear to have been seriously injured. An hour after the fall and after she returned to her hotel room, Richardson began to feel ill and was taken to a local hospital, Centre Hospitalier Laurentien. She was later transported to Sacré-Coeur Hospital in Montreal , where she was treated in the intensive care unit.
March 17 she was flown back to New York City where her family held vigil at Lenox Hill Hospital. She died one day later, on March 18.
On March 19 an autopsy was conducted by the New York City Medical Examiners Office to determine the cause of the death. It revealed that she died of "epidural hematoma due to blunt impact to the head". Epidural hematoma is a type of traumatic brain injury (TBI) in which a buildup of blood occurs between the dura mater (the tough outer membrane of the central nervous system) and the skull.
Her death was ruled an accident.