Four people were killed and a fifth was injured in a mass shooting at a Midtown Manhattan office building on Monday.

The 27-year-old man who shot and killed four people at a Midtown office building on Monday carried a note in his pocket, ...

The gunman who killed four people in a midtown Manhattan office building left a suicide note indicating that he was targeting the NFL, police said.

NYPD officials are heading to Las Vegas to investigate the gunman who killed four people in a Midtown Manhattan skyscraper.

Two teams NYPD detectives headed to Las Vegas Tuesday, to execute search warrants at Shane Tamura's home and at a gun store ...

Shane Tamura, after killing four in NYC, claimed in a note that he suffered from CTE and blamed the NFL, with no confirmed ...

The mayor of New York says Shane Devon Tamura may have been targeting the headquarters of the NFL when he opened fire at a ...

Four people were killed, including a New York City police officer, after police say a gunman drove cross-country for an ...

Authorities say the gunman who opened fire in a Midtown Manhattan office building on Monday night -- killing four people and injuring a fifth -- had a history of mental illness and may have been ...

Investigators are combing through evidence in the wake of New York City’s deadliest mass shooting since 2000, trying to ...

Shane Devon Tamura, 27, identified by the NYPD as the Midtown Manhattan office building shooter/Obtained by ABC News(NEW YORK ...