The question of having an armed security guard at a synagogue
POTUS was right to point out that NO armed security guard was present at the shooting.
For the record, I attended a funeral memorial at a synagogue in Tampa back in 2010 and as my wife and I entered the parking lot there was an unmarked police car with an ominous looking police officer sitting there staring at us. it was very clear that this individual was there to protect people at the synagogue.
So I find this shooting highly suspect considering that they had an active shooter drill and yet there was no armed security guard present.