"There’s sometimes a disconnect between how we think we’ll behave and what we actually do in unpredictable and unsettling moments." ...

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

The Las Vegas casino security supervisor who sold the assault-style rifle used in Monday's mass shooting in a Park Avenue ...

The owner of a private security business on Park Avenue said he questions how a shooter got so far into a Midtown office ...

The unpredictable factors leading up to a mass shooting in a Manhattan office building highlight the limitations of a ...

Four people, including an off-duty New York City police officer, were killed Monday when a gunman carrying a rifle opened ...

A young police officer assigned to The Bronx's 47th Precinct in the North Bronx, was fatally shot, along with five other people, including the gunman, during an active shooter incident that unfolded ...

Shane Tamura killed four people at a Manhattan office building Monday, including Blackstone executive Wesley Lepatner and New ...

Officials said the gunman fatally shot himself after his attack, which set off a chaotic scene that rippled out into the ...

NEW YORK, NY. - A horrific shooting at a bustling Midtown Manhattan office building on Monday evening left four innocent ...

The New York City office building that was the site of a mass shooting Monday had significant security measures in place.

After a gunman opened fire in a New York City office building and killed four people, experts share strategies for workplaces ...