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

Officer Didarul Islam, 36, who was guarding the building on a paid security job when he was killed, had served as a police ...

Members of the New York Police Department paid tribute to Officer Didarul Islam, one of the people killed in Monday's ...

More than a decade before he turned a Midtown NYC office building into a killing ground, Shane Tamura stood out as a rising ...

Shane Tamura, 27, used a rifle identified as an M-4 during the attack at 345 Park Avenue on Monday, police said.

The sons of the NYPD officer killed in the Park Avenue mass shooting idolized their dad, showing him off to classmates and ...

A man stalked through a Manhattan office tower firing a rifle, killing four people, including a New York City police officer, ...

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

Mourners packed a New York mosque to honor a Bangladesh-born police officer who was killed at an office building this week.

Roger Goodell was emotional on Thursday as he publicly addressed the deadly shooting that took place inside 345 Park Avenue, ...

The day after NYPD Detective Didarul Islam was laid to rest, he'll be remembered with a vigil at the precinct where he worked in the Bronx.

Authorities confiscated several items from a Las Vegas apartment tied to a gunman who used an AR-15-style rifle to kill four ...