Nancy Stone/Chicago Tribune/Tribune News Service via Getty Images Fast food has an issue with everyday violence. Fast-food restaurants have also been the site of a number of high-profile homicides over the decades. In these cases, either fast-food employees or customers were targeted in a violent crime. The details of these crimes are highly disturbing. Sign up for Business Insider's retail newsletter, The Drive-Thru. Visit Business Insider's homepage for more stories. Fast food has a dark side.