Could the 27-year-old have been stopped before his rampage in Midtown Manhattan last week? Just-released video of key moments ...

The mother of the man who killed four people at a Manhattan office tower home to the NFL before taking his own life told 911 ...

The father of NYPD Det. Didarul Islam, who was killed in last week's Midtown Manhattan office shooting spoke out Tuesday for the first time since his son's death.