Your photos are starting to suggest LEO is waving folks back inside.... snipers suspected? The waiter and the guy in the blue blazer are here looking at the cop... the previous pic showed them suddenly bolting for the door while the cop held pistol cover for them.
Just a different angle I think - he’s waving them out of the street to stand behind other police officers who are behind him - can’t be seen because of the door.
They said they’re not sure if these people were simply hiding and trying to find a way out of where they were....or actually ones being held.