The other thing --- Mohammad himself was a murderer of many Jews and Christians --- he wrote the Koran and instructed his followers to do the same. Islam cannot be peaceful because it's founder was not a peaceful man. There are peaceful Muslims --- but the problem is they have no freedom of religion --- no one can leave the religion or even criticize it in any way without a fatwa -- a death penalty placed upon him.
Mohammad was illiterate. He didn't write the Koran.