Sure, narratives are a thing. We read about a young black man who was wounded while resisting arrest, and that's different than "Man shot in the back by police, dies on way to hospital".
People committing violent crimes here in the USA are charged with murder if "things go wrong" and someone dies. If you kill someone during a robbery and "didn't think the gun was loaded", we still consider that murder.
Chauvin (previously "Officer Chauvin", another narrative) was criminally assaulting all those people he strangled with his knee, and this time it was lethal. Technically, that's murder. Morally, it's like he spent his days shooting at people with a 1-bullet revolver, then acted surprised when someone died.
I agree with his sentencing, though. What's far more important is that it takes *this much evidence* to put a single murderer away, just because they happen to be an Officer of the Law. Also that people are still defending the strangulation tactic as necessary. When they aren't attacking the victim - sorry, the dead person involved in a law enforcement incident - as not being an angel.
I don't care about putting one murderer away, I demand that the criminal justice system hold law enforcement responsible for abusive of force in general. At this point, Chauvin is only an exception that helps point out the greater problem. Chauvin thought he could get away with this forever, and *statistically* he's right. Officers are getting away with it all the time, off video or outside of the news cycle. That's what needs to change, and slapping him with 100 years wouldn't accomplish that. Arresting his conspirators would have, but we all know that never would have flied, because we all know police aren't accountable right now.
And until we believe in justice again, there will be no peace. That's often misinterpreted as a threat, but it's a basic law of society.