Personally, I suspect that standing in front of vehicles is now an unwritten policy. This allows them to shoot people because they can simply claim anyone trying to flee was coming at them. I am pretty sure we've seen this before and we are seeing it again in Portland, though less information is available about that incident. What it comes down to is that resistance is being killed. In the broader picture of where we are in a spectrum of fascism, as in "first they came for..." it is now at a level of "then they came for resistance." They are not literally knocking on doors asking people if they are resistance and taking them out, but people who protest are being arrested on trumped up charges, there is hateful rhetoric such as Trump shitting on people, and Otherism propaganda about resistance to include a lot of hateful identity politics and vitriolic stereotypes. Stealing people's cameras while claiming they are trying to dox masked men kidnapping people is a norm. Now also, killing US citizens who protest and flee is becoming a norm. This is where we are. It needs to be recognized for what it is.
One thing that can almost always be counted on is that the politics of the people pushing this are fairly universally problematic:
They hate the poor, they hate immigrants, they hand-wave away shootings, oppress women for being women instead of men, they oppress women for not wanting to have kids, they oppress poor people by taking away the subsidies the government provides for low-pay workers in food aid, by attacking the poor on the streets, by attacking the weird and the abnormal, by attacking the raped with disbelief, and so on.
It's all simply abysmal Nazi shit.
The "useless people" rhetoric has already started with RFK talking about autistic people as he has been.
It's not like it hasn't been rather apparent, either. It seems the "centrist" label that some cling to is more just a fig leaf to delay the inevitable realization that they're a full throated Nazi in a donkey costume.