The difference is
There is no difference, here you show again the very Christian hypocrisy that was spotted by Teamguns.
this guy isn't a terrorist fighting for a political agenda. He is just a loony who thinks he is a prophet of God,
People fighting for ISIS are also deranged people, sick and frustrated, sociopaths and psychopaths, but people like you often tend to generalize it to the whole Muslim population.
This guy goes against Jesus's teachings.
Guys fighitng for ISIS are also against Mohammed's teachings, you are just digging yourself deeper and deeper.