This email apparently had details of the layouts of LA schools. Don’t forget that one of the San Berdoo jihadis was an environmental inspector who inspected schools, one of which complained about him because they said he wanted photos of things that were not related to his job. That school was obviously his primary objective, but he wanted so much to kill his coworkers that had objected to his Islamic proselytizing that he stopped there first - and by the time he left, the high school was already under lockdown and surrounded by police.
You on the right thread?