One more data source to support your point (the US accounts for 10 of the 20 worst rampages in Western democratic countries): http://www.statista.com/statistic

One more data source to support your point (the US accounts for 10 of the 20 worst rampages in Western democratic countries): http://www.statista.com/statistics/1871/number-of-victims-of-rampages-in-western-democratic-countries/ http://www.statista.com/statistics/1871/number-of-victims-of...