Rivera's death has sparked theories among paranormal enthusiasts while fans and his loved ones mourn him. Get updates on what happened to the late 54-year-old here.

Dan Rivera, a paranormal investigator and a handler of “Annabelle,” a doll that’s rumored to be possessed by evil spirits, has died.

Rivera told those in attendance that he had taken steps to “protect them” from the doll, including building the case that holds the toy.