Ban assault guns
Guns are the preferred instrument of mass killers. My suggested solution to reduce mass killings is to make illegal all high-capacity magazine guns and tighten registration of most guns. These types of weapons serve no useful purpose to society.
Opponents of this concept claim mass killings should be solved by improving our mental health care system. In my opinion, society is incapable of accomplishing that feat in the near future.
When mankind faces a significant disaster, it usually isolates and confines the prime cause of the problem. There are many current examples of this type of action, i.e. the Ebola epidemic in Africa. Congress should at once enact legislation to restrict the existence of all high-capacity magazine guns.