If you ever take time to note, please tell me the last time the left ever blamed violent crime on criminals? I would wager you would have to think long and hard before you could cite anyone on the left blaming anything but guns, and racism, and poverty of course. Especially guns Animal Magnetism explains that we ought to focus on the cause of violent crime, yes, I am going to use the T word, thugs!
Amazingly, (or perhaps not) murders in the United States are highly concentrated in a few locations; mostly urban. Excerpt:
The United States can really be divided up into three types of places. Places where there are no murders, places where there are a few murders, and places where murders are very common.
In 2014, the most recent year that a county level breakdown is available, 54% of counties (with 11% of the population) have no murders. 69% of counties have no more than one murder, and about 20% of the population. These counties account for only 4% of all murders in the country.