Okay.
Yep. Just like I thought, Gabrielle Amorth while chief Exorcist of Rome under John Paul II writes on page 37-38 of the English edition of "An Exorcist Tells his Story" that Cardinal Nassali Rocca verified the story with Leo XIII's secretary Msgr, Rinaldo Angeli.
Fr. Amorth refers to him as a "reliable witness"
Amorth believes the "myth" fully. He documents the verification right to as close a source to Leo as you can get. Cekada doesn't even know it existed it seems.
Now, why would John Paul II allow his chief Exorcist to go around publishing, promoting and believing a "myth"?
Especially by making statements that are so ambiguous?
Interesting. Which version of the story is Amorth talking about?