Mass killings have occurred for a long time in the world and America but recently random acts of violence in public have been on the rise. Here Security Degree Hub has a look at the history of mass killings throughout the 20th century.
David Wallace is a search & social media marketer who lives in Ahwatukee Arizona with his lovely wife. Interests & hobbies include all things Disney, roller coasters, musicianship and Christianity. Follow +David Wallace on Google + as well as Twitter.