A 14-year-old boy used an AR-platform-style rifle in a high school near Atlanta, Georgia and killed two students and two teachers.

Editor’s note: We are publishing these 3D animations to show the destructive power of the AR-15. The images may disturb some people. The wounds show the lethal force of the AR-15. But they are ...

Gun manufactures began marketing military-style weapons and gear - like bullet-proof vests and high-capacity magazines - to the public. Industry titans, like Sturm, Ruger & Co, added the AR-15 to ...

and three fully loaded magazines with 100 rounds. He had opened fire on the former president with a semi-automatic AR-15 rifle. Crooks was also found with a bulletproof vest, prompting speculation ...

Day 5 of the trial was a somber one for the families of victims killed in the Boulder Table Mesa King Soopers shooting.

An AK-47 assault-style rifle fitted with a scope, two backpacks, and a GoPro camera were recovered near the scene, law ...

Lawyers for the accused gunman are using the state’s insanity defense, arguing that he was mentally ill at the time of the ...

Kentucky police have recovered an SUV and an AR-15 rifle in the manhunt for a suspected gunman who, according to authorities, opened fire near Interstate 75, injuring several people and causing a ...

A Colorado Springs police officer at the annual Medal of Valor ceremony in September. The city police department has responded to several mass shootings in recent years, and many officers now ...

During the stop, the Sheriff’s Office says the deputy saw a loaded AR-15-style rifle with a magazine that was “on the back ...

An AR-15 recovered near the scene of a shooting along Interstate 75 in Kentucky is believed to be the weapon used by the gunman who opened fire on drivers and hospitalized five people. NBC News ...

Georgia school shooter hid an AR-15-style rifle in his backpack and left class with his bag the morning of the deadly rampage By Rebekah Riess , Holly Yan and Devon Sayers, CNN 4 minute read ...