From all accounts, Mr. Blake and his incompetent police attempting to arrest him richly deserved each other. 
He had an open arrest warrant for domestic violence and sexual assault.  The police did not stop him randomly nor did they target him for some kind of harassment.  They were called to the scene by a citizen who reported he was trying to steal her vehicle, presumably his ex, or whatever.
As in the case of many domestic disputes, the cops met heated resistance in an emotionally charged argument between a mister and a miss.  Whether Mr. Blake was holding a knife, brandishing it, or merely claiming it was on his person, a struggle ensued as the officers tried to take him into custody.   They had reason enough from the details that came out. 
A physical fight ensued.  That alone would or could get most anyone shot by police.  Once resisting arrest progresses beyond a certain point, the officer has legitimate reason to believe lethal threat may be involved.
Non-lethal force was deployed.  Mr. Blake was tased by one officer to subdue him.  It failed.  Another officer tased him.  No effect.  
At that point, the lawyers for Mr. Blake allege he was heading into the van to "check on his sons."  This isn't very credible under the circumstances.  When one is in the midst of a fist-fight with police officers, it isn't plausible that suddenly one becomes worried about children who are contained inside a vehicle with the doors shut.  
However, the drawing of firearms was entirely on the officers.  Surely two officers could have subdued one man long enough to get him cuffed.  If they couldn't, they are in the wrong job.  Because they couldn't control the suspect, it resulted in letting him walk, not run, around the vehicle to escalate a situation further.  The police allowed his action, but his action was indeed his.
He was guilty of domestic abuse that triggered the call to the police.  He was guilty of resisting arrest and possibly with a knife.  The police were guilty of situational incompetence.  Unlike the crazy that died in Rochester, there is no allegation that Mr. Blake was on PCP or had superhuman strength.  Letting him open the door and reach for a weapon was a huge mistake and caused the shooting.  That's on them.
But, he's no more a victim than any other crazy on the street.  He caused the entire chain of events, and they made it worse by their bungling.
But racial?  Hardly.  It just serves the need du jour to portray everything that happens between black criminals and white cops as racist.  If a white man had fought with police, gotten up from a double tasering and then went for his vehicle, he would have been shot just as quickly, but it wouldn't have made headlines because a horde of criminals, white or black, would not have taken to the streets to use the opportunity to rage. 
Black Lives do Matter, but so far, way too many of the proof cases are people you would not only not want for neighbors, but would not even allow them into your homes.  
That's not to take away from the incidents when police do target blacks or when they kill without due cause, but that doesn't make every one of these cases valid examples just because the optics work.