Liberal horseshit. You can ascribe any motivation you want to a Muslim that has blown his ass up and taken beaucoup infidels with him. You can't torture the truth out of him because you can't find enough of him to torture.
I suspect the real figure is over 90%.
To these idiots Christians handing out pamphlets in front of a Planned Parenthood clinic consititutes a terrorist attack, while the muslim student at UC Merced who was shot after stabbing several random people, and who had left behind a manifesto mentioning Allah and ISIS, doesn’t.