Michelle Trachtenberg died naturally of complications caused by diabetes mellitus, according to the New York City medical examiner's office.

The actress was pronounced dead in February after she was found unresponsive in her NYC apartment. She was 39.

In heartbreaking news, actress Michelle Trachtenberg passed away at age 39. According to PEOPLE, the Gossip Girl and Buffy ...

Those close to the actress, 39, said she had been 'sick for quite a while' before her death earlier this year.