Everytown for Gun Safety’s Nick Suplina joins ABC News’ Linsey Davis to unpack what the Manhattan shooting tells us about the effectiveness of some of the strictest gun laws in the U.S.

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

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

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

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

A lone gunman walked into a midtown Manhattan office building Monday and opened fire, killing four people, including an NYPD officer, before turning the gun on himself.

NYPD Chief John Chell describes Midtown Manhattan office shooting as mayhem after gunman Shane Tamura killed four people, ...

Two teams NYPD detectives headed to Las Vegas Tuesday, to execute search warrants at Shane Tamura's home and at a gun store ...

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

Police are investigating a reported active shooter at a Midtown Manhattan high-rise. Here’s what we know about the suspect ...

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

Shane Devon Tamura, 27, was identified as the shooter who had driven across the country from Nevada and arrived in New York ...