Its just an excuse because he didn't achieve his aim. Lets face it if it had just been a political stunt he would have stayed and faced the music and not run off to Italy.
Indeed, his actions speak louder than his words. If he just wanted to scare then why run.
what i find odd is that these terrorists say its for islam, when if you ask any muslim they will tell you once you have committed suicide you are no longer part of islam, so this excuse is nul and void and makes these terrorists ignorant of their own religion, the problem is their not being taught this side of islam