[outlaw]

Mass shootings in America
By decade:[4]
1900′s:0
1910′s:2
1920′s:2
1930′s:9
1940′s:8
1950′s:1
1960′s:6
1970′s:13
1980′s:32
1990′s:42
2000′s:28
2010-2013:14

Worst Years:
1991: 8
1999,2012:7