Amy Winehouse's past with drugs was well documented, but despite reports that drugs were to blame for her death, her family feels otherwise.
Instead, they believe a sudden abstinence from alcohol might have been what led to her untimely passing last Saturday at age 27, sources say.
Winehouse ignored doctors' advice to cut back gradually from her heavy drinking and went cold turkey in the past month, Britain's Sun reports.
Her official cause of death is still inconclusive, but her family believes that this decision simply caused too much of a shock to her fragile system.
"Abstinence gave her body such a fright, they thought it was eventually the cause of her death," says a source of Amy's effort to quit drinking.
Her father, Mitch Winehouse, said in a eulogy at his daughter's funeral that he believed it was the opposite of a bender that took his daughter.
"It was all or nothing and she gave up completely," says the source.
"Mitch said the shock of giving all that up, after everything she had been through over a bad few years, was just too much for her to take."
Blake Fielder-Civil claims he could have saved her. Ironically, if the cause of her demise really was withdrawal, the junkie might be correct.