Please provide me with a link to where you got your information that this was from Michael's diary. Oh, and not a pro-Terri website. Certainly there's a website that printed Michael's diary.
The document I looked at was labeled Michael Schiavo. You could be right, but I don't think the point is much blunted if it was some other close observer.
By "Mary Schiavo," I presume you mean Mrs. Schindler?