They would have been screaming about anything they thought they saw. They would have answered his simple and legal question but they did not like somebody standing up to them. It became about ego and in your own home... you should ALWAYS win that one. The home owner was asking for a warrant and complying with orders except opening the door, hands were up showing no aggressiveness. If they really thought there was a danger to anybody but were not sure, they could have backed off, gotten a warrant (after stating their probable cause to the judge) and then entered the home (per the Constitution, that being the 4th Amendment). That was not what happened. This was what many of us fear as a police state. I am a cop and I can do anything I want. That is BS.
On this one there is no "what everyone sees".