The gunman in the deadly shooting at a New York City office tower had a background in casino surveillance and once held a ...

The NFL released a statement about the mass shooting at its NYC headquarters Monday night, which left four dead, including a police officer.

"It was heartbreaking, shock, still in disbelief," said Walter Roby, the former assistant football coach at Granada Hills High School in Los Angeles.

The man who killed four people at a Manhattan office building bought his AR-15-style rifle and getaway car from his Las Vegas ...

Four people were killed on Monday when a man, identified by police as Shane Tamura, walked into the lobby of 345 Park Avenue ...

Exclusive video shows SWAT teams executing a search warrant at the Las Vegas apartment of Shane Tamura, the man behind Monday's deadly shooting in New York City that left four people dead.

NEW YORK -- A 27-year-old man wearing body armor and carrying an M4 assault rifle shot and killed four people, including ...

As the investigation continues to find the motive behind a deadly shooting in New York City on Monday night, questions also remain surrounding the suspect's wea ...

NYPD detectives searched the shooter's studio apartment in Las Vegas where they found what law enforcement sources described ...

New York City detectives investigating this week's mass shooting were interviewing the attacker's associates in his home ...

Authorities say the man who killed four people at a Manhattan office building bought the rifle he used in the attack and the ...