Nothing new under the Sun. Violent jihad is the default position for Islam--initiated by Muhammed and his first disciples. The friendly Moslems we may know are the (not very outspoken) reformed followers of Islam.
History is bloodied with numerous examples of this default position. I am reminded of the film "Khartoum" (starring Charlton Heston & Laurence Olivier) that was based upon historical events in Sudan during the 1880s----I didn't like the way that one ended!