An armed guard at a bank in northern Iran calmly walked up behind a senior Shiite cleric and shot and killed the ayatollah on Wednesday, according to surveillance footage from the site, the most-senior clergyman slain during months of unrest that has shaken the Islamic Republic. But later surveillance footage shared widely by Iranian media showed the shooter inside the bank, openly carrying a firearm and milling around briefly before he walked up to Soleimani and shot him. Seminary students have been among those killed while serving in the paramilitary Revolutionary Guard’s volunteer Basij force during the demonstrations, the government says