One thing none of these newspapers mentioned was the demographic profile of the shooters and victims. There was talk of 'gangs' and 'high-crime neighborhoods', which all Americans can immediately decipher. But in case my foreign readers are wondering, this is what it's all about:
(source). Although the majority of assailants has yet to be identified (it's hard to investigate crimes in black neighborhoods because witnesses distrust police and fear retaliation from the shooters, who are often well-known), nobody is assuming they're white.
Violent crime has always been a disproportionately black / Hispanic affair in the U.S., but it appears to be getting even more extremely concentrated. Not necessarily because black and Hispanic crime rates are going up -- they are, in some cities, but not dramatically overall -- but because U.S. urban whites and Asians are quickly becoming one of the most law-abiding groups in human history.
Thanks to gentrification and rising costs of living, the white populations of major U.S. citizens are becoming quite rich. This means the only groups left in cities who continue to commit any kind of violent crime at all are blacks and Hispanics. Despite a record wave of 750+ homicides in Chicago this year overall, some predominantly white neighborhoods had no homicides at all.
So feel free to visit Chicago, which is a delightful place. The locals will tell you which neighborhoods to avoid. Even if you visited them, you probably won't have a problem, since most of these killings are gang-related, and you're not in a gang. But you could be hit by a stray bullet.