Why would a vaccine cause homicides.
Its the result of lowered responsibility by protected groups, hatred for the law, caused by liberals and protected groups, and a complete LACK of responsibility as a Citizen in School, the home, and life.
It's hell everywhere. Even my neighbor is acting more rowdy by the day. Just yesterday, he stuck his fork in my yard. Who knows what he'll do next. You may think this is petty? Look at the reasons for killings in the five cities you mentioned. Their reasons are even pettier.