Yes I'm sure they were right there offering copies of the Watchtower and Awake magazines to the injured. Just what you need when you have been severly injured by a bomb.
The Watchtower has had long held policy of denying their members a chance to get an education beyond high school so the chances of any of the doctors, nurses, paramedics on the scene being JWs is pretty much zip.
A lot of the people injured needed blood to save there lives. Would you really want a JW involved saving your life under these conditions? If you need blood it would be: "Oh well there goes another one. Can't piss Jehovah off".