NEW YORK, July 16 -- Paranormal investigator Dan Rivera died suddenly during a tour featuring the infamous "haunted" Annabelle doll over the weekend.

According to the New York Daily News, Rivera was in Gettysburg, Pennsylvania, for a stop on the "Devils on the Run" tour when emergency responders were called to his hotel on Sunday night.

While the exact cause of death is unclear, TMZ reported that dispatch logs from Adams County revealed that there was a call made for CPR in progress on a man who matched Rivera's age.

"It's with deep sadness that [we] share the sudden passing of our close friend and partner, Dan Rivera," the New England Society for Psychic Research said on Facebook, confirming his death.

"We are heartbroken and still p...