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

Fans and friends alike are mourning the loss of Michelle Trachtenberg, who died this week at age 39. Sarah Michelle Gellar was among those sharing tributes to the actor, with whom she co-starred on Buffy The Vampire Slayer.