Horse-pucky. You kill a cop coming through the door, and you'll be dead or on death row.
If the cop has the wrong address or name and you as the resident have a clean record no 12 people will agree upon conviction. A reasonable law abiding person has every right to believe someone bashing down their door while they are coming out of the bathroom etc {out of hearing range} is a hostile intruder especially when those Morons are not in PATROL police uniform.
I do not agree with no knock unannounced entry EXCEPT under hostage situations. As long as judges let any cop swear the warrant and the cop who swears the warrant {for example an undercover bust} is not there to present said warrant innocent people both police and citizens are going to get shot. If the cops can't handle that then they need to find another profession. But a cop swearing a warrant stating the offense should be required to be on scene to serve it yes even undercover cops.
A lot of mistakes come from where Cop A goes to the judge & swears a warrant and Cop B and company serve it while Cop A is elsewhere or even off duty etc. Cop A knows the actual location on a visual. A typo by a clerk, cop, or anyone else in the process makes for these types of mistakes.
I'm pro-law enforcement but I believe a person has every right to assume they are safe in their own home and it is a GOD given right of the innocents to protect their property. Police need to dump their ninja suits and fatigues also except again under hostage situations where innocent life is at stake. Do the raids in Patrol uniform. They bring much of this on themselves not doing so IMO.
So, if strangers break down your door unannounced, you won't shoot at them just because they might be cops? If that becomes the message, expect lots of home invasions by the bad guys as a result.
If the cops are invading the wrong house, then it's the cops who will have legal problems. And if I'm on the jury, the cops will have more to fear from the justice system than the residents of the house--unless the cops properly announced themselves ("knocking" isn't the only way to do that, of course.)