TITLE: Study: States with more gun laws have less gun violence (2013).
SOURCE: USA TODAY
AUTHOR: Yamiche Alcindor
LINK: http://www.usatoday.com/story/news/nation/2013/03/07/gun-violence-study-chicago/1969227/
NOTES: research gives clear evidence that tougher laws on guns have a role in preventing firearms deaths from both homicide and suicide. (2) researchers used CDC data from all 50 states between 2007 to 2010.