The cause of death for Michelle Trachtenberg, the “Gossip Girl” and “Buffy the Vampire Slayer” star, will remain undetermined as her family declined an autopsy, Variety has confirmed. Families can decline autopsies when there is so evidence of foul play or for religious reasons.

Multiple reports say the 39-year-old ‘Gossip Girl’ star had a liver transplant in the past year, but without an autopsy her death certificate will say her cause of death is