A lot of violent crime happens within the home by folks who live there. Since the majority of residents of Detroit are black, the majority of victims in these situation will be black.

Just like in Warren, the majority of Warren residents are white, and therefor the majority of domestic disputes are white on white.

The big thing in Detroit and many other places as well is to be smart and use your head. Be aware of your surroundings, and do you best to minimize your chances of being a victim of crime.