If there was a real desire to prevent this behavior, we would have laws providing swift, certain, and public execution of the shooter. As in most such cases there is no doubt of guilt. The shooter should be tried, sentenced, and swinging from the end of a rope in the public square within two weeks. Instead, we have this same argument about guns and what segment of society is at fault while the guilty party sits in jail for the next 30 years. Most of these folks are nuts but they don’t have a death wish and faced with certain execution they may take a different course.