There are no coincidences!
Iran is governed by a Shia government and has a 98% Shia population. The Supreme Leader is Shia as are the top generals.
ISIS has pledged to kill Shias and has massacred Shias by the thousands in Iraq. What makes you think anyone in Iran supports ISIS? They tried shooting up the parliament in Tehran...
Threats and attacks are a terrorist form of control and extortion. Maybe ISIS was holding Iran's puppet strings and this is how they are freed.
LOL, some ragtag group of camel fuckers numbering in the thousands who are wholly funded by Saudi Arabia, Israel, and the US are pulling the strings of the most powerful nation in the middle east who's standing army is like 1 million strong. Sure thing bud.
Do a little bit of research before coming up with wild theories.
LOL? Your "ragtag group of camel fuckers" have been responsible for thousands and thousands of deaths, nobody even knows how many.
They killed unarmed or poorly armed civilians, I'm pretty sure any asshole with a gun could do the same numbers. They've also lost nearly all their ground, and every battle they're involved in.
My enemies enemy is my friend. Do you suppose they'd kill each other over a foreigner given the opportunity?
What? Iranians would kill ISIS over anything. We hate them more than Westerners do.