I am a Mainer.
Which school? If you PM me the name of the school, I will call the school and report my findings back to FS.
In the meantime, I googled your claim and found nothing but debunked stories. I myself have heard coworkers say, "It happened at School X," or "It happened at School Y." Regardless of which school is mentioned, the story always involves a janitor who works there and verified the story. As I said, none of those claims have been true.
Unlike a lot of modern folks, I don't believe partisan stories unless there is actual evident to support them. (And, no, I'm not a Democrat.)