First what we see in this article is not a failure in training. It's a failure in hiring. It's a propensity to hire psychotics as police officers. That's the only explanation. Some take the lone route. Such as Jeffery Dahmer or Ted Bundy. Others take the route of being a police officer. It's the only way to explain the callous disregard for taking a life we see here.
It's the only way to explain a Philip Brailsford. It's the only way to explain a Derek Chauvin. Staring blankly into a camera as a man dies with his knee on his neck.
One police force did do it's job and deemed Timothy Loehmann unfit to be a police officer. A few others turned him down also. But there were two forces still willing to hire him. One even after it was proven he had no problem with lying. The person who hired him didn't do so because a lack of training.
Then we have the system above them filled with people who put their ambitions above the lives of individuals. A few people being killed or unjustly sent to prison is a small price to pay for them becoming a judge or Senator. Just look at Kamala Harris for a perfect example of this.
Then we have a huge problem with far too many thinking the mighty dollar is more important than people. If you have money you can get away with things that those without money can not. You can hire well placed, well connected lawyers.
Then there is racism. No one is arguing that the problem is only racism but it most certainly plays a role. If you think there is no connection to a Derek Cauvin and his union head wearing a white power patch, you are wrong.
Nobody calls the police on a white man walking down the street with a hat on like someone did with Elijah McClain. His only crime was being black in our society. Kyle Rittenhouse walks right past police officers after having shot people and goes home but Philandro Castillo gets pulled over for having a "wide set nose". You can find video after video now where blacks get pulled over for something incredibly minor or simply made up.
So do we need to address they way police officers are trained? Yes. Do we need to change the way we hire police officers? Yes. Do we still have a problem with racism? Yes.