The United States faced a great loss after the Sandy Hook shooting eight years ago, on Dec. 14, 2012. But, the country has faced such incidents before and after that day, including the 1999 Columbine shooting...

A bill is sitting on Gov. Nixon's desk awaiting his approval for allowing school staff to have a gun in the classroom. It also lowers the conceal and carry permit age from 21 to 19, and it prohibits cities...