Do Police have authority to become judge, jury and executioner of someone suspected of being under the influence of drugs?

Nope.

Only Nazi KKKops feel that they have such a power.

Back up, this didn't start with cops sitting on a criminal

Here are the facts in Chronological order. (something LIberals don't like)

1   Criminal has history of robbery, hostage taking and abuse (not a good person)2   Criminal passes a fake $20, (hard to believe it was an accident)3   Cops stop him and question him4   Criminal (weighs 270lbs) not a skinny jean boy like you5   Criminal is on drugs6   Criminals on Drugs have super strength7   Criminal fights with cops8   Criminal resists arrest9   Cops use techniques designed to subdue criminals on drugs10 Cops use excessive technigues on criminal11 Criminals body generates massive amounts of adrenaline12 Criminals preexisiting heart condition, drug use and adrenaline cause body to shut down.Count how many things were in the control of the Criminal and how many were in the control of the cops Criminal (9) Cops (3)

don't do drugs.  don't walk into a store high as a motherfkn kite and try to pass off fake bills.  problem solved.

Well, obviously not.  But you know what I have noticed? Bad people who want to do bad things will tell all sorts of lies to justify their evil actions. They never admit to doing anything wrong. It is up to the people who stand for right and wrong and justice and morals and scruples and honest Constitutionality and freedom for all to realize that these evil malicious people will never stop, and that we must be as determined and persistent as they are.  What is going on right now in the USA is essentially the same reasons why we fought a civil war. The only difference is that I have much more respect for the Confederates of back then even though they were wrong and I disagree with them. I respect them more than today's treasonous seditious racists traitor Republicans because at least back then the Confederates were honest about what they were and what they wanted and said it proudly. They did not lie. They just said, we believe in this evil thing and we will fight to keep it.  Today's traitors are more sneaky and are a lying sack of excrement. They are too cowardly to come out declare their intentions and fight openly to accomplish it.

Yes I have a strong feeling that George Floyd was On drugs and died from them and the cops will not be charged

no one else in this increasingly third world country is doing anything about crime drugs or gangs and when the cops do get someone to court an army of publicly funded defenders try to get them back on the streets and the judges all help them, so one less violent hoodlum is not worth worrying about , given the death rate in the black community 20000 shot dead already this year is is clearly hypocritical to single out one cop trying to do his job or are the black americans saying WE are the only ones that are allowed to kill other blacks?

Nope...but guess what... they're responsible for public safety and that trumps the safety of the suspect once that suspect makes himself a threat to himself and others...which is exactly what Floyd became once he struggled his way out of a police vehicle and resisted the efforts of officers to surrender peacefully...

Does that excuse excessive force?  No, of course not.  But please understand how the need for added drama played a much bigger role in the nationwide riots than the officer's actions themselves...

That depends... is it a black guy?

No. Not according to the 14th amendment, or the 5th amendment.

In a first world country?  Only in America.