Which Life Mattered?

Milwaukee, a city that last had a Republican mayor in 1908, has seen "a night of violent protests" (as opposed to rioting) in the wake of the death of Sylville Smith.  Sylville ran from officers during a traffic stop.  Sylville was armed and reportedly raised the gun in the direction of the pursuing officers.  He was shot in the chest and arm.  The incident was captured on body cam footage though that footage has not yet been released.  The important part to the rioters and the Black Lives Matter crowd is that a black suspect was killed by police.  Anything beyond that is irrelevant.

And now for the rest of the story: the officer who shot Sylville Smith was black.  If the officer had not taken down Sylville but instead had been killed by him, would there still have been a riot?  In either case, a black life would have been lost.  Which life mattered?  Black Lives Matter is an anti-law enforcement group that is presenting itself as a civil rights group.  That the sitting president supports them is a clear message to police across the country.  After decades of declining crime rates, there has been an uptick since Black Lives Matter arose.  Coincidence?  I think not.  Also, isn't it strange how all these 'racist' shootings keep taking place in cities where Democrats have had single-party rule for decades?  Why doesn't anyone ever seem to notice that?