Retired FBI agent Jason Pack reacts to the killing of three officers serving a warrant in Pennsylvania and weighs in on new details about the surrender of Charlie Kirk’s alleged assassin.

FBI Director Kash Patel spurred a fierce but fleeting rally in Krispy Kreme shares (DNUT) on Wednesday after he said the stock was a solid investment.

A Republican lawmaker revealed for the first time Wednesday that there is a quasi-list of suspected clients of sex trafficker Jeffrey Epstein that can be compiled from a series of witness statements and other evidence gathered by the FBI.

Retired FBI special agent Darren Mott joined 'Fox & Friends' to discuss the latest on the investigation into a fatal shooting involving several police officers in Pennsylvania.

A judge recently ruled that a civil trial should proceed. The decision gave families new hope in their quest for information about any possible Saudi government link to the attack.

The FBI ran metro area law enforcement and medical professionals through a range of scenarios in a training event in Overland Park Tuesday and Wednesday.

The guns, which were traced to North Carolina, South Carolina, Kentucky, Texas and Georgia, included AR-15 style rifles, shotguns and pistols, as well as semiautomatic weapons and several extended

A Columbia law professor who is a friend and adviser to former FBI Director James Comey was subpoenaed last week by federal prosecutors in connection with a criminal probe into whether Comey allegedly lied in testimony before Congress, sources familiar with the matter told ABC News.