He thought they are the ones doing all the killings in Iraq.
(Arab News) The Iraqi Civil Defense has released a six-minute video showing the arrest of a 21-year-old Saudi national, who reportedly left Syria to join the Islamic State (IS) in Iraq to “free the land of Jews.” [...]
According the video, Al-Tamimi said he first became interested in fighting abroad via the Internet. “I saw videos and pictures of children being killed. This prompted me to get in touch with an IS member in Iraq, known as Abdulmajeed Al-Otaibi, via Twitter,” he said.