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Cause of death revealed for paranormal investigator who died suddenly during 'Annabelle' doll tour

Published Sep 05, 2025 9:47 am

A cause of death has been determined for the paranormal investigator who died while showcasing Annabelle, the purported haunted doll that inspired entries in The Conjuring horror franchise.

According to PEOPLE Magazine, Adams County coroner Francis Dutrow said that Dan Rivera's cause of death was cardiac-related and was marked as natural.

“Mr. Rivera had a known history of cardiac issues, which were consistent with the findings," he said in a statement, noting that it was also "confirmed that Annabelle was not present in the room at the time of his passing."

The 54-year-old was found dead on July 13. His death was confirmed by The New England Society for Psychic Research, where he worked as its senior lead investigator.

He 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 is pushing through 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.