Yawn - how can you possibly defend this?
That siren was not blaring, there were not readily identifiable police cars out front, they did not give the man an adequate time to come o the door to seewhat was going on, etc.
They were no different than the raid that killed bin laden. It was an execution plain and simple.
The siren did blare. And for much longer than the 2 seconds you first claimed. The man evidently had adequate time to grab a gun and station himself in the hall. I am not sure what the van looked like but evidently you do.
If the video showed an execution as you claim then there would be arrests because of this video.