US Marshalls were, as well. Look at the pictures, you’ll see those vests.
Pretty big fed contingent.
I still believe the delay in going in was intentional and directed by higher ups for political reasons. They need this national outcry. But the video of the parents screaming at the un prepared police to do something go in and get my children out while they are standing around and the gunman was inside the school for over an hour tells the tale