Police searched Shane Tamura’s employee locker at a Las Vegas Strip casino in their attempts to piece together why he killed ...

The NYPD sent detectives to Las Vegas to work with federal law enforcement in the investigation into Monday's deadly shooting ...

The attorney for the man who sold what would become the deadly weapon in a mass shooting in New York City earlier this week ...

Among the dead were a police officer, a security guard and two people who worked at companies in the building. An NFL ...

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

Las Vegas Metropolitan Police officers are stationed outside the upscale gated community where the shooter, Shane Tamura, ...

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

The gunman who opened fire at a Manhattan office building Monday, killing four people before taking his own life, legally ...

Detectives searched the studio apartment of 27-year-old Shane Tamura, who shot five people on Monday before killing himself, ...

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

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

The man who shot and killed four people at a New York office building was once arrested at a Las Vegas casino for trespassing ...