From Mises.org:

And when it comes to things like homicides, there is no evidence that things are getting worse. It is indeed true that things aren’t like they were “when we were kids,” but that’s a good thing. There were far more homicides in the United States during the 1980s and 1990s than there are today. Things were even worse than that during the 1970s. In fact, the homicide rate in the US was cut in half between 1991 and 2014. And while the homicide rate has inched up over the past two years, it is nowhere near where it was “when we were kids.”