Dateline’s “Deadly Swagger” explores Dan Serafini’s case, the Lake Tahoe shooting, and key evidence behind his conviction.

A man armed with an “AR-style pistol” walked into health insurer Aetna’s headquarters in Connecticut — but was quickly ...

Police say a man carrying a backpack with an AR-style pistol inside has been arrested after walking into Aetna's headquarters in Connecticut.

A man was arrested Thursday morning after entering Aetna headquarters carrying a backpack that contained an AR-style pistol.

An 18-year-old Virginia student was arrested after a weapons detection system alerted an administrator to a pistol in his ...

A 31-year-old man was charged April 15 with money laundering after New Braunfels police found a large sum of cash concealed ...

THIS is the chilling moment a student makes a gun-shape with his hands as he paces a classroom before killing 10 people in a ...

A student killed nine people and wounded 13 in a Turkey school shooting, the second attack in two days, raising alarm in ...

A second school shooting in as many days has left eight schoolchildren and their teacher dead, and 16 others injured ...

Wednesday’s attack in the ‌province of Kahramanmaras was carried out by a student in the eighth grade, Governor Mukerrem ...

An analysis of Mardi Gras gun arrests in New Orleans reveals racial disparities, legal challenges, and questions about ...