If you don't know about the 12th, or "missing", imam, then this article about a cult leader who claimed to be the "missing" imam won't mean much. But it's a big deal to Shia. In fact the Iranian President, Iyamanutjob, believes he is paving the way for the return of the missing imam. Paving the way via nuclear blasts in Israel, but nonetheless, he believes he's helping the missing imam return to earth.
The leader of this cult also claimed to be the missing imam, or the Mahdi. He also happened to be killed during a clash with IA and Coalition forces. So if he was the Mahdi, he wasn't very well protected by Allah.
Proof once again that we don't worship the same God.