America has a gun violence problem. What do we do about it?
ABC News
Gun violence has been a serious epidemic in America for decades. Researchers say the first step to curbing the violence is to dig into the details.
This report is a part of "Rethinking Gun Violence," an ABC News series examining the level of gun violence in the U.S. -- and what can be done about it
Mass shootings have dominated the headlines, conversations and political debate around America's gun violence problem for decades.
Perpetrated in many cases with military-style rifles, they have become a symbol for some of America's obsession with guns, and high-powered ones at that, as well as a propensity for violence by some. Active shooter incidents have been on the rise in the two decades since a dozen students and a teacher were killed at Columbine High School in 1999.