Winehouse's parents, Mitch and Janis, were joined by Kelly Osbourne, Mark Ronson, Eliza Doolittle and the singer's boyfriend, director Reg Traviss. Earlier in the day, Winehouse's family (including her brother Alex) visited the singer's north London home as part of the Jewish tradition, Shiva.
(Mitch, 60, was seen handing out T-shirts to fans gathered outside his daughter's Camden Square property.)
Although Monday's autopsy was "inconclusive," Mitch doesn't believe drug abuse was the cause of his daughter's death. "Three years ago, Amy conquered her drug dependency," he told Us Weekly in a statement Tuesday. "The doctors said it was impossible, but she really did it. She was trying hard to deal with her drinking and had just completed three weeks of abstinence."
Winehouse was found dead in her home on Saturday. She was 27.