Islamic’s do not call in bomb threats: They bomb, shoot, stab, behead, etc., without warning, and then take credit after the attack.
Quoting ladyjane for those in this other thread:
“Farook’s work inside of San Bernardino schools took on special significance on Tuesday when the San Bernardino Sun reported that the terrorist had pictures of a Rialto high school on his cell phone. As a health inspector working in school kitchens and cafeterias, Farook would have become familiar with the facilities various entrances and escape routes. He also would have had easy access to hundreds of so-called soft targetsÂhad he wanted to cause mass carnage.”