FBI

The inmate who claims to have killed more than 90 women across the country is now considered to be the deadliest serial killer in U.S. history, the…

Cesar Sayoc, accused of mailing explosive devices to a number of prominent Trump critics, reportedly had a list of potential targets including an editor at The New York Times.

Vitriolic tweets and pro-Trump social media posts add context to the background of Cesar Altieri Sayoc, the man in connection with the homemade pipe bombs sent to top Democrats and liberal donors.

The Florida man charged on Friday ran afoul of the law for decades and was arrested for a slew of crimes, including larceny, drug possession and making a bomb threat.

Potentially deadly letters and packages are rare, and technology makes it easier to track down perpetrators. But they can play a powerful role in further polarizing the country, analysts say.

The embattled Supreme Court nominee published an op-ed on the Wall Street Journal website Thursday evening while key GOP senators whose votes will be decisive continued to weigh their decision.

Paul Manafort's business partner Rick Gates has become the center of the defense's case. They say he is behind the financial crimes Manafort is accused of. Gates is expected to testify this week.

"Russia attempted to interfere with the last election and ... it continues to engage in malign influence operations to this day," Christopher Wray said at a national security forum.

A state investigative panel plans to interview officials from the Federal Bureau of Investigation about why they failed to act on a tip that could have...

Dylann Roof was able to buy a gun two months before the Charleston church massacre because of a background check error. A new plan by the FBI aims to fix what critics call the "Charleston Loophole."

Cohen once said he would "do anything" to protect Donald Trump. Facing an ongoing FBI probe of his finances and business dealings, Cohen now says his "first loyalty" rests with his family.

FBI leaders and local law enforcement officials are studying shootings in schools to piece together trends and come up with ways to prevent future...