FBI

MLK/FBI director Sam Pollard chronicles the FBI's campaign against Martin Luther King Jr., which included sending King a letter suggesting that he kill himself.

A day after the early Christmas explosion injured three people and damaged dozens of buildings in downtown Nashville, large swaths of the state's communications networks are still down.

The blast could be felt for miles and damaged nearby buildings. The FBI is now leading the investigation, working with local police and the Bureau of Alcohol, Tobacco, Firearms and Explosives.

The bureau was faulted after the Russian attack on the 2016 election for keeping too much information from state and local authorities. It says it'll use a new policy going forward.

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.