Now that I realize Devlin is the perp's name, he was also trying to remove Devlin from the name and post it as a place as well as remove the indentifier "Kirkwood".
He must have walked in on Shawn after he had submitted the first post.
But the perp would be giving too much accurate information himself. I didn't see that post as a taunt but more as a "are you ever going to stop looking for me?" type of thing.