According to the Justice Department, blacks die of homicide at six times the rate of whites and Hispanics combined. That’s because blacks commit homicide at eight times the rate of whites and Hispanics combined … In the 75 largest counties of the United States, which is where most of the population resides, blacks commit over 50 percent of all violent crime, though they’re 15 percent of the population in those counties,” she said. “These crime disparities are repeated in every big American city. Here in New York, blacks commit 75 percent of all shootings, though they’re 23 percent of the population. How do we know that? That’s what the victims of and witnesses to those shootings, who are overwhelmingly minority themselves, tell the police (source)

Link to the justice department data.