From a pure numbers standpoint, more whites are killed by blacks.
According to the Centers for Disease Control and Prevention, from 1999-2011, data shows 2,151 whites died by being shot by police compared to 1,130 blacks.
True, but those numbers get a lot closer when you look only at killings of unarmed suspects. Looking at the Guardian's count of shootings in 2015, there have been 69 unarmed white and 62 unarmed black suspects killed by police. Far out of proportion to our relative populations, and it is killings of unarmed suspects that have prompted most of the large outrcries. Its not a black only problem, but that doesn't mean that black people don't feel disproportionately harmed and that this is a facet of a larger problem of hostility between police/"the system" and their communities. We can still look at this as being a general problem of policing strategy/tactics, while the parallel issue of racial justice is pursued.
Here are some other stats that no one mentions.
DOJ statistics show that during 1980-2008, blacks committed 52 percent of all homicides compared to 45 percent of whites and according to the more recent FBI’s statistics, in 2013, black criminals committed 38 percent of murders compared to 31.1 percent of white criminals.
The Manhattan Institute found that 85 percent of interracial violence (non murder) is black on white.
Now think about this...the black population is only 13 percent of the country and is outnumbered 5-1 by whites yet they commit 8 times more violence against whites than whites against blacks.
These are numbers that never get mentioned because any honest racial discussion is considered "racist" so white guilt and the victim mentality is the only thing allowed to be promoted despite it being a total lie.
The murder rate in the US may be higher than western Europe, but is thankfully still fairly low, having fallen a lot in the past decades. Even with the higher murder rate among black Americans, about 2 out of every 10,000 black people in the US killed someone last year. And even with black perp white victim murders being more common than the reverse, black perps only account for 16% of white victims. We can't say anything worthwhile about race relations using such tiny portions of people. If racism exists, and if black people are disadvantaged by it, then the 2 out of 10,000 black people who murder someone, and the small fraction of that group that killed a white person, aren't particularly relevant to the conversation. And, yes, the numbers killed by police are likewise relatively ssmal, but what has led to protests and a movement is not the mere fact that the killings occur, but the perceived lack of justice for those killed, with police predominantly getting the benefit of the doubt and even highly suspect cases not being even prosecuted. That's why these get focused on - if a gangbanger shoots somebody over drugs, or to take their stuff, everybody expects that they'll be arrested if identified and prosecuted.