Furthermore it is outright inaccurate to state that the United States has more mass shootings than any other country.  The US state department states incidents where 10 or more are killed world wide which shows in the hundreds.  These are mass killings that occur all over the world.
http://crimeresearch.org/2015/06/comparing-death-rates-from-mass-public-shootings-in-the-us-and-europe/
http://www.state.gov/documents/organization/195768.pdf

Sidenote:Sorry about the youtube video I accidently posted in my previous post.  I really ment to post a news report.