Michelle Trachtenberg's cause of death has been officially determined less than two months after she died at the age of 39. The New York City Office of Chief Medical Examiner confirmed on Wednesday, April 16,

The cause of death for 39-year-old actress Michelle Trachtenberg has been revealed as related to diabetes complications, specifically diabetes mellitus. The "Buffy the Vampire Slayer" and "Gossip Girl" star was found dead in her New York City apartment Feb.

Michelle Trachtenberg's death was initially undetermined but the medical examiner amended it after lab test results showed complications of diabetes mellitus.