A second inquest into Amy Winehouse's death has confirmed the British singer died of alcohol poisoning, London officials said. Winehouse, 27, died at her home in 2011 after years of drug and alcohol abuse. A deputy coroner initially recorded the cause of her death as misadventure by alcohol toxicity, but a second inquest was ordered after it was discovered the official didn't have the right qualifications to make the determination. She has since stepped down from the position.