SOBRIETY: Quitting Alcohol Killed Winehouse?

According to Amy Winehouse's family, booze didn't kill the singer: The lack of booze did. Family sources tell the Sun they believe she cut herself off from alcohol too quickly, giving her body a fatal "shock." Doctors had warned her to quit drinking gradually, but instead she went cold turkey three weeks before her death. "Abstinence gave her body such a fright they thought it was eventually the cause of her death," one source says.

But, the Sun adds, Winehouse may have fallen off the wagon three days before her death: A source saw her drinking gin and Red Bull at a London music festival. But her mother and boyfriend saw her the day before her death and were convinced she hadn't been drinking.