The number one lesson on mass shootings is the first cop on the scene, either alone or with others MUST make entry to try and stop the killer. Its called suicide entry but it has to be done. That lesson was learned at Columbine.
Suicide entry???
LOL....
Yeah whatever...
That is what I have come to believe. The cops must make the attempt to engage the shooter early.
If the shooter killed himself or otherwise stopped shooting after being threatened by the two police and the hotel security guard, then they did their job well enough.
Who cares if he ate his gun or even watched the news of his “work” until SWAT was about to come in?