She was found unresponsive on the hospital roof at about 8:45 a.m. Thursday and was treated in the hospital emergency room for approximately 14 hours before she was pronounced dead late Thursday

It is unclear how the patient managed to get on the hospital roof and how long she was there in frigid temperatures.

She was found on the roof of the hospital just before 9 a.m. Thursday and was moved to the emergency room for treatment, but later died.

Investigators are trying to determine what led to the death of a woman after she was found Thursday on the roof of the Vista Medical Center East in Waukegan. The woman, 28 had been admitted earlier this week,

A family is demanding answers after a woman went missing from a Waukegan hospital and her body was later found on the building's roof.