Questions About Kentucky Justice

The justice system in Louisville surely failed Breonna Taylor. Nonetheless, because we still lack important information about before the shooting started, during the incident and after, what crimes the three cops who fired rounds may have committed isn't clear to me. 

Questions:

To start with, I need to understand more about why those cops were there with a battering ram and why they wore no body cameras. Do the laws in Kentucky really allow for all that?

At the minimum it appears the bar for obtaining a no-knock warrant was woefully low. Why would such extreme tactics for a raid be allowed with such flimsy evidence to justify their use?

Why should we believe the cops (pictured above) when it seems they probably lied on the initial reports? When there's a shooting, especially when people are injured, shouldn't it be some sort of crime in itself to willfully tell falsehoods on official reports? 

Why would the city pay out $12 million if there really was no wrong-doing? Were any members of the grand jury aware of that payment? 

And, yes, once again, we have to ask what role did race have on any and all of above? 

-- Photos from ABC News.