Michelle Trachtenberg's cause of death was complications of diabetes mellitus, officials say

Michelle Trachtenberg, star of the teen drama series "Gossip Girl" and "Buffy the Vampire Slayer," died of complications of diabetes mellitus in February, the New York City Office of Chief Medical Examiner announced Wednesday.

Trachtenberg's death was initially undetermined after the family objected to an autopsy but the medical examiner amended the cause and manner of death following laboratory test results. The manner was determined to be natural.

The New York Police Department responded to a 911 call at 8:01 a.m. local time on Feb. 26 to an apartment in midtown Manhattan, where they found Trachtenberg unconscious and unresponsive. Trachtenberg was 39 years old.