@cognitivenewsnetwork: Sad news; Actress #michelletrachtenberg known for her roles in "Harriet the Spy," "Ice Princess," "Gossip Girl," and more has died at age 39. Trachtenberg is believed to have died of natural causes, police sources told ABC News. #naturalcauses #restinpeace #movie #actress #news #gossipgirl #iceprincess