Michelle Trachetenberg's cause and manner of death will remain undetermined after her family objected to having an autopsy conducted on her body.

Eugenie became friends with Trachtenberg when she lived in New York City and worked for the art auction start-up Paddle8 from 2013 to 2015. Their friendship first became public in December 2013, when they were photographed courtside at a Knicks game alongside actor Michael K.

Michelle Trachtenberg, an American actor known for her roles in the television series "Buffy the Vampire Slayer" and "Gossip Girl," died on Wednesday, according to her public relations team.