"The man suspected of killing a Dutch filmmaker critical of Islam was probably driven by extremist Islamist motives and was already known to the national security service, the government said on Wednesday. Director Theo van Gogh, who angered some Muslims with a film that said Islam encouraged violence against women -- and who has also offended Jews and Christians with his blunt views -- was shot and stabbed as he cycled to work in Amsterdam on Tuesday," Marcel Michelson reports in Reuters.