An arrest was made after a man defaced the salt-stain Virgin Mary, on the wall of a Chgo underpass, according to this Sun-Times article.
What I don't get is why this vandal, Victor Gonzalez -- or any other person, for that matter -- feels the need to stomp on somebody else's faith. It's none of his business if these people want to view a stain on the wall as a message from beyond. As long as they're not using it as an excuse for holy war, then vandalizing it becomes, in essence, an early salvo in the unbelievers' jihad.
Somebody comfortable in his own belief system does not feel the need to undermine another's foundation.