CSI: New York: And Here's To You, Mrs. Azrael

A girl is paralyzed in a car crash and then, after receiving a hopeful prognosis, is murdered in the hospital. Her friend who was also in the car died, so Mac wonders if it was a case of mistaken identity. They also determine that the girl in the hospital had made a death pact with one of her friends. Meanwhile, the investigation at the hospital brings up old issues for Sheldon.