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

The man who killed four people at a Manhattan office building bought his AR-15-style rifle and getaway car from his Las Vegas ...

The New York City Medical Examiner determined a cause and manner of death for the gunman who killed four people inside a ...

The Nevada man behind a shooting spree in a Midtown Manhattan office building may have originally been targeting for the NFL ...

NYPD said the gunman purchased the fully-assembled AR 15-style rifle used in the shooting from his supervisor.

Officials said the gunman fatally shot himself after his attack, which set off a chaotic scene that rippled out into the ...

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

Nevada's gun laws are again under scrutiny after a Las Vegas man opened fire in Midtown Manhattan, killing four people and ...

FOX5 is taking a deeper look at Nevada laws for concealed carry firearm permits and weapons purchases following the ...

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

Everytown for Gun Safety’s Nick Suplina joins ABC News’ Linsey Davis to unpack what the Manhattan shooting tells us about the ...