Image Credit: Dan Rivera/Instagram The mystery surrounding the sudden death of Dan Rivera has fueled widespread concern about the late paranormal investigator. At just 54, Rivera died in July after conducting ticketed Annabelle doll tours in Gettysburg, Pennsylvania. Of course, horror fans are speculating about the coincidence between Rivera's death and the presence of the allegedly haunted figurine. However, a report surfaced about the state of Rivera's health after he died.