Los Angeles County coroner's spokesman Ed Winter says Ryan died Saturday at her home in Los Angeles. He says her death has been ruled a suicide after the agency performed an autopsy.
Ryan had gained fame on YouTube with impersonations of celebrities, including Justin Bieber, Kim Kardashian and Amy Winehouse.
She also had a sketch comedy show on VH1, "Stevie TV," and co-hosted a relationship talk show with Brody Jenner.
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