The Koran begs to differ.
Transcript of speech by Theresa May:
… I am going to talk to you about the deadly terrorist threat we face. David Haines was a tireless humanitarian worker who helped Muslims….not just in Syria….but in Bosnia, South Sudan and Libya. Two weeks ago, he was murdered by terrorists, simply for being British. His murder followed the equally barbaric killings of James Foley and Steven Sotloff, American journalists who were reporting to the world the plight of the Syrian people.
The terrorists who murdered David Haines like to call themselves the Islamic State. But I will tell you the truth: They are not Islamic. And they are not a state. Their actions have absolutely no basis in anything written in the Quran. What they believe has no resemblance whatsoever to the beliefs of more than a billion Muslims all over the world. And, like all the other Islamist terrorist organisations, they have caused the deaths of many thousands of innocent Muslim civilians. They occupy large parts of Syria and Iraq, and not only are they bringing death and destruction to the people of those countries, they have made absolutely clear their desire to attack Britain, America and the West.