horrors marked by an obscene worship of violence. and all these, baghdadi is invisible but yet doubtless a key decision-maker. one of the more terrifying things he helped create is the obsession with gruesomely videoing murder and harnessing social media to make it a global franchise against people it had often never met. from afghanistan, paris, brussels, atrocities committed by people who were attracted to isis brand to commit atrocities and even tie for for it. but a recording of his speech. it became a pattern. no public appearances, mixed with randomly-released audio statements. u.s. officials told cnn they believe he was injured in may 2017 and had to take five months away from his leadership duties