FBI leaders in Washington said they were treating the Boulder attack as an act of terrorism, and the Justice Department — ...

U.S. lawmakers, Trump administration officials and Jewish groups were among those who condemned the terror attack in Boulder, ...

Colorado authorities reportedly said there were six victims in the attack. They were taken o to local hospitals.

Investigators say about 100 people were at the party when gunfire broke out. Witnesses said many were local high schoolers ...

One person is dead and at least 11 others have been injured in a mass shooting that broke out during a party in western North ...

Roughly 80 men in ICE custody are currently being held in the federal prison at Leavenworth. Advocates say conditions there ...

Twelve people were shot with one victim confirmed dead in a mass shooting early Sunday morning near Hickory, according to the ...

Several people were injured in the attack, and multiple local, state and federal agencies descended on the scene to investigate.

A list of more than 500 “sanctuary jurisdictions” no longer appears in the Department of Homeland Security’s website after ...

H.H. Holmes is believed to be the United States’ first known serial killer. In 1886, Holmes, whose original name was Herman Mudgett, took a job as a pharmacist in Chicago. At this point, he changed ...

An officer-involved shooting in San Diego leaves one dead after a man with a knife was shot following a pursuit and crash.

Police say Mohamed Sabry Soliman, 45, used a makeshift flamethrower and threw incendiary devices into the crowd during the ...