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

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

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

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

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

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

Kathy Hochul's focus on "assault weapons" is puzzling, since the perpetrator easily could have killed the same number of ...

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