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.

The gunman who killed an NYPD officer and three other people in a Midtown building on Monday evening was carrying a note that ...

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 ...

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

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

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

Shane Tamura, 27, who fatally shot four people in the building that houses the National Football League's headquarters Monday ...

As detectives both in New York and here in Las Vegas work to uncover more details about Shane Tamura’s past, details of his struggles with mental health are bei ...

Shane Tamura was remembered by high school classmates and a coach as a talented running back. Recently, though, he was ...

Tisch said Tamura had a Nevada gun license and used an AR-15 style assault rifle. Tamura legally purchased a revolver in June using his concealed carry permit, Tisch said. CBS and CNN published a ...