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

The frantic mom of mass shooter Shane Tamura had repeatedly called 911 on her mentally ill son in the years before he shot up ...

A lone gunman walked into a midtown Manhattan office building Monday and opened fire, killing four people, including an NYPD ...

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

The gunman in the deadly Midtown Manhattan shooting, Shane Tamura, wrote about the brain disease CTE in a note obtained by ...

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

Shane Tamura's 2015 motivational football video of has gone viral in wake of the fatal shooting at NFL headquarters that ...

Investigators found the note in the wallet of 27-year-old shooter Shane Tamura who police said opened fire inside of 345 Park ...

New York Police Department has not officially stated the motive of Shane Tamura shooting an NYPD official and other civilians ...

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