I just love the hypocrisy. They do this at 0430 without announcing who they are before entering specifically so that the occupant is confused and disoriented, yet when they kill him claim there is no way he could not have known they were police. Yep, totally legit.
Exactly right. They can't have it both ways -- to claim they are clearly identifiable and announced, while entering at a time chosen to provide the most surprise and confusion.