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

New York City police detectives searched a studio apartment in Las Vegas that belonged to the suspected gunman in Monday's ...

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

No motive has been announced. A suicide note was found expressing grievances with the NFL and saying Tamura suffered from CTE ...

Shane Devon Tamura was the 27-year-old man living in Las Vegas who fatally shot at least four people in a mass shooting at ...

Wearing body armor and wielding an assault-style rifle, the alleged gunman burst into a Midtown Manhattan office building ...

Investigators are examining why the gunman who killed four people before taking his own life at a New York City office tower ...

A note found in the gunman's wallet was critical of the NFL and mentioned CTE. The 27-year-old wrote, “Study my brain please.

Five people, including a New York City police officer, died in a shooting in Manhattan. Suspected gunman Shane Devon Tamura ...

In a video message, Tisch said Tamura left a suicide note and claimed to be suffering from chronic traumatic encephalopathy ...

The 27-year-old Nevada man left a note at the scene voicing anger that his mental illness may be linked to his having played ...

The suspect was identified as Shane Tamura, of Nevada, two people briefed on the investigation told the AP. Sources said he ...