The flip side of the story—the narrative of accepted truth—is that Casolaro committed suicide in his hotel room. He used a straight razor to slash his wrists. There were partially consumed containers of alcohol in the bathroom; he was found to have alcohol and traces of painkillers and antidepressants in his system.
He left a suicide note, an analysis of which showed it was in his handwriting. There was no forced entry to the room, no signs of struggle.
The bartender at the hotel lounge, one of the last people to see him, recalled that Casolaro seemed depressed, he didn’t seem like a happy person.
His investigative notes were gone, but who can say what a depressed person who becomes a suicide would do with his personal belongings. If he killed himself, is it inconceivable that he would also destroy his life’s work?