Statistics are bullshit. A statistic is data being fed and eliminated to prove a certain outcome. If you eliminate all of the white people that are born into money and raised in a upper class area and just compare the % of white people born into a family with a history of poverty and pit those people against black people of the same family income and living situations you will see the crime rate would be more 3-1 in favor of whites committing more crimes.
The simple fact is the majority of black people come from a lower income homes. People that are poor commit crimes due to their financial situations and not for the lust to break the law. If you took all of the black people from the ghetto and moved them to a nice suburban neighborhood and said here is a high paying job, here is some better education, no neighborhood violence and guess what there are no drug dealers or liquor stores that are owned by Koreans on every corner within two generations their shit would be in order. The thing is for every black person that makes it to college and decent paying job they will have a story of struggle and survival behind it. While 4-5 white person that makes it through college and into a decent paying job they will have a different background of living a sheltered life and how their parents wouldn't let them work a job while they were in high school or college because they were supposed to focus 100% on their grades and studies. Black person would have had to work a job, babysit his little brothers and sisters, bused it a long way to a decent grade school and probably would have had to excel in some form of athletics just to get a scholarship to attend college.
Do a Google search on 'philadelphia flash mob violence'
It's not isolated. It's the latest craze among black people. i don't know what their demographic is, just know they're black.