Brooke Mueller says she's 9 months sober after she was reportedly questioned in Matthew Perry investigation

Brooke Mueller revealed she's been sober for nine months in her first interview in 15 years. Charlie Sheen's ex-wife was recently questioned in Matthew Perry's death investigation.

"And a lot of people at my level of addiction don't make it," she added. "In fact, most people don't. I worked really hard. It has not been easy. I am sober. I do work a program. I do believe in the Twelve Steps."

Mueller, who shares twins with her ex-husband, noted she has a "fantastic sober community" in Malibu and attends meetings.