I don’t remember if I skimmed this at the B Dalton or if I had to wait until I got my hands on the TPB - back when TPBs were rare!

BACK ISSUE! Magazine

Robin is dead and The Joker has been made the official UN ambassador from Iran, thus granting him diplomatic immunity. Batman discovers that Iran made The Joker ambassador so he can assassinate everyone in the United Nations building -- and there is nothing Batman can do to prevent the massacre.