It looks like we have an explanation for Amy Winehouse's tragic death. A coroner says the singer died from drinking too much alcohol, ruling it a "death by misadventure." A pathologist says Winehouse consumed a “very large quantity of alcohol” prior to her death and that her blood registered at 4.5 times over the legal drunk-driving limit. Winehouse, who died this summer at the age of 27, had struggled with drug and alcohol addiction for years. Her doctor says she had resumed drinking in the days before her death after a period of abstinence. An initial autopsy found no evidence of illegal drugs in her system.