Ted Kaczynski is flanked by federal agents as he is led from the federal courthouse in Helena, Mont., on April 4, 1996. Kaczynski is now serving a life sentence in prison for the bombings.
John Youngbear/Associated Press
Tim Slater, special agent in charge of the FBI's Washington field office, holds up a flyer looking for information about shooter James T. Hodgkinson at a news conference a week ago in Alexandria, Va.
President Trump's personal attorney Marc Kasowitz speaks to members of the media at the National Press Club in Washington on Thursday about the testimony of former FBI Director James Comey.
Pablo Martinez Monsivais/AP
A crowd gathered for a watch party at The Partisan bar in Washington, D.C., on Thursday, as former FBI Director James Comey testified before the Senate Select Intelligence Committee.
Bill Clark/CQ-Roll Call Inc.
The empty frame (center) from which thieves cut Rembrandt's Christ in the Storm on the Sea of Galilee remains on display at the Isabella Stewart Gardner Museum in Boston in 2010. The painting was one of more than a dozen works stolen from the museum in 1990.
Josh Reynolds/Associated Press
Then-FBI Director James Comey testifies during a Senate Judiciary Committee hearing on May 3. Comey was fired May 9 after more than a year of controversy surrounding the FBI's investigation into Hillary Clinton's email server.