Armed no-knock warrants don't normally happen to white people. And, as the officers didn't announce themselves, they were fired on in self-defense.
Kentucky AG Daniel Cameron said that there's a witness claiming that the police did identify themselves before knocking down the door:
According to an arrest report, the officers had been granted a "no-knock" warrant, allowing them to enter the property without warning.
But Mr Cameron said on Wednesday the officers had not actually served such a warrant. The attorney general said the officers' statements that they identified themselves "are corroborated by an independent witness".
Since Breonna's boyfriend (Kenneth Walker) fired upon the officers first, the police can't be charged with murder for killing Breonna Taylor in the crossfire.
So...
You have to consider a few things here.
Firstly, Kentucky. Their state senate has 38 members, 28 of which are Republican. State House has 100 members, 61 Republican.
Their national senators are Mitch McConnell, arch-conservative, and Rand Paul, libertarian conservative. Their elect 6 members to the US Congress, 5 of whom are Republican.
Their governor is democrat, but pretty much every other official is Republican, as you might imagine with a Republican dominated state legislature.
This includes the office of attorney general, an elected position.
So, with that out of the way, it's not unreasonable to expect a Republican elected official in a Republican state in a national election year in which the Republicans are hammering that law and order line to come out in favour of the police, even if they are proven to have done something wrong... which, given the city settled out of court in a wrongful death lawsuit, they most assuredly did.
Secondly, their neighbours say that the police
did not announce themselves, so Walker was well within his rights to go wtf and fire, given that he is a registered firearm owner (which means he has no felony convictions) and he fired all of one time, wounding one of his attackers. They fired back, recklessly, considering, as delphonso pointed out, they fired upwards of 20 times.
I don't think they searched the house, though that's from the Beeb article Dwarfy posted that said they abandoned that idea after the shooting. Oh, they raided the apartment because it they were interested in Taylor's ex-boyfriend, who the authorities thought was receiving packages at the apartment, and Walker thought it was the ex raiding the house, which is why he fired his one shot.
This means they raided an apartment occupied by two people without criminal records, without announcing themselves, and killed one of the occupants who had the audacity to get freaked the fuck out by people breaking into his home at 1am.
Shit went wrong, but, paraphrasing LeBron James, at least her neighbour's walls are getting justice. Too bad about the lady that died though...