A knifeman murders his mother and sister west of Paris

A knife-wielding attacker, shouting Allahu Akbar, murdered his mother and sister before he was shot dead by French police in Trappes, a small town west of Paris on Thursday.  One other person was seriously injured. ISIS took responsibility for the attack just days after a video clip was released on which Islamist State leader Abu Bakr al-Baghdadi urged followers to continue to wage jihad against the West.