Quitting Alcohol Killed Winehouse, Says Family Source says abrupt withdrawal was 'shock' to body By Evann Gastaldo, Newser Staff Posted Jul 28, 2011 10:59 AM CDT 15 comments Comments Jazz Soul diva Amy Winehouse, from England, has a drink while performing on the main stage of the Rock in Rio Lisboa music festival at the Bela Vista Park Friday, May 30, 2008, Portugal. (AP Photo/Steven Governo) (Newser) – 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. Click for more on the unreleased music Winehouse reportedly left behind.