It's not the killing of Terrence Crutcher or of Keith Scott alone that sends people into the street.

It's the existence of ongoing, everyday, state sanctioned, unpunished lethal violence against black men, women, and children in a country with an unbroken history of it.

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Now, welcome to the award-winning BestOfTheLifetime podcast with Cups today from Making Contact, The Benjamin Dixon Show, Democracy Now, Counter-Spin, Start Making Sense from the Nation magazine, Politically Reactive, Edge of Sports Radio, and The Young Turks.

And the music in today's show are just a few of my suggestions for new national anthems maybe that have slightly less racist origins.

The investigative journalism outlet, ProPublica, set out to analyze the data on hundreds of such cases for signs of racial disparity.

Their startling findings were released in the report, Deadly Force in Black and White.

Just from looking at the raw numbers, the rate for black young males, black Canadian males was just astronomical, especially in the most recent years.

That's Ryan Gabrielson. In fact, he and his colleagues found that the risk of being killed by the police was 21 times greater for black males than their white counterparts.

How did they get to that conclusion? It starts with something called the Supplementary Homicide Report.

Supplementary Homicide Report is in total, it's a database of all homicides known to law enforcement every single year.

And in those homicides is a subset categorized as felons killed by police.

And those are what law enforcement say are their justified homicides.

And it's a, you know, woefully incomplete record set in that, you know, it maybe has probably half of all these homicides that actually take place in each year.

But despite the issues with the data, Gabrielson says it still shows something that many campaigners have said for years that young black males are disproportionately killed by police.

And it also tells us something about how the justification for those homicides has changed.

Is there was a really dramatic shift that started or in the mid 1980s?

Up until then, Gabrielson says law enforcement gave all kinds of reasons as justification for killing someone.

A lot of times it was, they caught the person, the commission of a crime, about a third of the time though, it was, they said that the perpetrator or the felons as they categorize it was resisting or fleeing arrest.

But something happened that would change all that.

In 1985, the US Supreme Court instituted sort of its first rules or limitations on when law enforcement can use deadly force.

The decision came in a case called Tennessee versus Ghana.

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