Citizens carrying guns can save lives

See the following links from John Lott's Crime Prevention Research Center.

https://www.dallasnews.com/news/arlington/2017/05/03/two-people-killed-third-wounded-arlington-restaurant-shooting-reports-say

http://www.kmov.com/story/35223450/homicide-investigation-underway-following-double-shooting-at-south-city-7-eleven