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

Police have identified the man who they say entered a Midtown Manhattan office building wearing body armor and opened fire, ...

New York City homicide detectives sought clues on Tuesday to what led a Las Vegas man to drive cross-country, storm into a ...

A lone gunman opened fire at a Manhattan office tower that houses the NFL and Blackstone, killing four people.

The attorney for the man who sold what would become the deadly weapon in a mass shooting in New York City earlier this week ...

The gunman, who said in a note he believed he had CTE, targeted skyscraper that houses the NFL's headquarters.

NYC gunman Shane Tamura is seen on video talking about his high school football career in California after a game in ...

New York City is mourning NYPD Officer Didarul Islam and three other people killed in Monday's shooting inside an office ...

New York City investigators believe a co-worker of the Las Vegas man who killed four, including a police officer, provided a ...

New York Police Department Commissioner Jessica Tisch detailed the minute-by-minute timeline of Shane Tamura's movements and ...

Shane Tamura, a 27-year-old former high school football player from Las Vegas with a documented mental health history, was ...

The 27-year-old Nevada man opened fire at a New York City office building, killing at least four people and then himself.