Here is my #GeorgeFlyod theory:

Flyod was murderer to prevent him from revealing a counterfeit operation. The cops that showed up after the original officers were told to make sure Flyod could never be flipped. They performed a hit for organized crime.

Someone in the car with Flyod likely gave him counterfeit money. People who use this money typically do not hang around in their car after using it.

But Flyod could testify where he got the money from, which would likely expose organized crime.

So someone in the car with Flyod probably called friends and told them what was about to go down. Flyod figured he was innocent and didn't want to have cops hunting him down.

#GeorgeFlyod

So whoever was called from the car eventually alerted powerful organized crime who knew which dirty cops could be called to come to the scene and take over.

They arrived and moved Flyod to an area which was less visible to stage a resisting arrest scenario.

The question must be answered why that cop was so motivated to make sure Flyod died. It can't just be random racism and hatred. The cop was very visibly motivated to make sure Flyod died, and stayed dead.

They didn't want him to talk to other law enforcement.