Parks and Recreation Executive Producer Harris Wittels was found dead of an apparent overdose Thursday at his home, TMZ reports. Police found the 30-year-old, who had gone to rehab twice and spoken openly about his problems with drugs, lying on his couch. Recs star Amy Poehler made a somber appearance at Variety's unite4humanity event Thursday night, only hours after Wittels was found. "Today, I lost a friend," she said. "I lost a dear, young friend in my life who was struggling with addiction. I'm sharing it with you because life and death live so close together, and we walk that fine line every day. When things happen in our lives, we turn to the people that we love ... and we lean on people, in a hope that we will ease our pain. So, I don't really feel like telling any jokes. I'm kind of sad, and it's really great to be here tonight and listen to all of you, and listen to the great work that you do and be reminded why we live in this bizarre planet called 'Hollywood.'"