More details revealed about death of paranormal expert during 'Annabelle' doll tour

A coroner shared new details about the passing of the paranormal investigator who died while he was showcasing Annabelle, the purported haunted doll that inspired entries in The Conjuring horror franchise.

CNN International reported that Francis Dutrow—a coroner in Pennsylvania—said that the doll was not in the hotel room where Dan Rivera was found dead by his coworkers at 54 years old.

In a report by Pennsylvania State Police, they said that they don't believe that foul play had something to do with his passing and marked the nature of it as "natural."

The cause of his death remains unknown. The investigation could take several months, according to authorities.

The New England Society for Psychic Research, where Rivera worked as its senior lead investigator, confirmed his death early this week.

The paranormal expert passed away in the middle of the organization's Devils on the Run Tour, which has the "demonically possessed" Annabelle doll as one of its key highlights among other dark aspects of paranormal activity.

"Despite its seemingly innocent appearance, the infamous Annabelle doll has been the cause of numerous terrifying incidents," the NESPR said in its description of the tour. "The doll has reportedly brought misfortune, injury, and even death to those who have interacted with it improperly."

The tour featuring the "haunted" Annabelle doll will continue even after Rivera's sudden death.

PEOPLE Magazine reported that the NESPR said it's because they believe that Rivera "would have wanted the work to continue—bringing people together, sharing knowledge, and honoring the memory of Ed & Lorraine Warren," who founded NESPR.

"We will carry his spirit with us in everything we do," the organization is quoted as saying.