More is coming out about Nicholas Brendon's sudden death. As we previously reported, the Buffy the Vampire Slayer star passed away at 54 years old last week. His family confirmed the news of his death on Instagram on Friday, saying he died "in his sleep of natural causes." Now, the coroner is revealing new details about the tragedy. Related: Nicholas' Lawyers Are STILL Pursuing Lawsuit After His Death! Putnam County Coroner Todd Zeiner told Page Six on Wednesday that Nicholas "resided alone and was discovered by a longtime friend who had been staying overnight to provide care.