Lynette Rice
April 30, 2009 AT 12:00 PM EDT

A 44-year-old development executive for NBC died on the set of the new pilot Parenthood April 29, according to the Hollywood Reporter. Nora O’Brien collapsed from a brain aneurysm during a taping of the new drama that stars Peter Krause, Maura Tierney and Erika Christensen. O’Brien joined NBC in 2008.

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