Wait wait wait. Putting aside the whole 'Batman name' thing, which is utterly impossible, they are blaiming the movie for suicides? Couldn't they technically blame any violent movie for that sort of thing? Sounds like attention grabbing to me.
I seem to recall in Australia a woman was threatening to sue WB over the violence in the film and the effect that it had on her young son (he was so traumatized by the film she said she needed to get him a psychiatrist).