My memory may be faulty, but I thought I heard they were tacticaled up in all black and may have had "POLICE" on, but only on back.
There was also a comment I saw (no corroboration) that claimed the guy didn't shoot back, but bolted for the back door and police out back fired at him with police coming in the front door in the line of fire. Not sure if that is true. Initially it was claimed he shot back with a revolver, but later no revolver showed up on lists of things found in the house. If no one fired back, I would ask what the justification was for shooting them at all. We will see.
I was talking with people at work yesterday and it was pointed out that the guy(s) who lied to get the warrant was one of those shot. Makes me wonder what would have happened had there been no shooting and that guy was around to find "evidence". And the shooting brought in a lot more cops than are normally there. The whole thing stinks. I haven't come across anyone yet who isn't suspicious of what was going on.