"Before Park Ave. Shooting," says the headline over a New York Times story published this week, "Nevada Police Had Gunman ...

The Las Vegas police released documents and records describing the mental health breakdowns that the man who killed four ...

Newly released police reports and body camera footage are shedding light on the troubled path that led a shooter on a ...

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

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

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

The shooter who killed four people in a Manhattan office building housing the NFL’s headquarters had sought medical treatment ...

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

The New York Police Department tracked his travel from Nevada to Manhattan as well as his spending in recent years.

Rep. Nicole Malliotakis spoke with Fox News Digital after the deadly shooting that left multiple people including a police ...