“It’s impossible LE didn’t have a drone in the air. If not multiple resources.”
If they had a drone flying, they would have seen the shooter - he was CLEAR AS DAY on that roof and prevented the shooting.
Sorry, but there was no drone. And no, EVERYTHING that local police do has to be approved by the Secret Service (which makes a lot of sense, assuming they are really trying to protect him).
Why would you assume that the federal LE would NOT have a drone in the air?