During evening rush hour in New York City on Monday, a man calmly walked into a Park Avenue office building lobby and killed ...

Colorado lawmakers have adopted more than two dozen new laws regulating the sale, purchase, possession and carrying of guns since the 2012 Aurora movie theater shooting. Here’s a timeline.

When I got here, business was great,” one Colorado gun store owner said. “And now they’re just trying to put up all these ...

LAS VEGAS -- The gunman who killed four people before taking his own life in a midtown Manhattan office building that houses the NFL's headquarters had for years sought medical help for frequent, ...