This is the compete surveillance video. If you just watch the first couple of mins and the last minute, those are the most relevant, nothing significance in the rest.
It's another example of how doing dumb things can lead to bad results. And it raises questions in how the police responded. From what I can see so far, it's tragic and mistakes were likely made in the response, but I doubt these cops are guilty of a crime.
The only reason it apparently is getting less attention is because the kid did have a pellet pistol that looked exactly like a real gun. But from a chance to comply with the cops, the kid had almost no chance.