Given the question: Extract the answer to the following question from the movie plot. If the question isn't answerable, please output "Can't answer". Question: Who orders Swagger released and exonerates him of all charges? Title: Shooter Movie plot: Bob Lee Swagger reluctantly leaves a self-imposed exile from his isolated mountain home in the Wind River Range at the request of Colonel Isaac Johnson, who appeals to him to help track down an assassin who is planning to shoot the president. Johnson gives him a list of three cities where the President is scheduled to visit and Swagger assesses a site in Philadelphia as the most likely. This turns out to be a set-up; while Swagger is working with Johnson's agents to find the rumored assassin, the Ethiopian archbishop is instead shot while standing next to the president. Swagger is then shot twice by a city police officer, but manages to escape. The agents tell the police that Swagger is the shooter and stage a manhunt for the injured sniper. However, he meets a rookie FBI special agent, Nick Memphis, disarms him, and steals his car. After his escape, Swagger takes refuge with Sarah Fenn, widow of his late spotter and close friend, killed years before in a mission in Africa. He later convinces her to help him contact Memphis with information on the conspiracy. Memphis is blamed for Swagger's escape and is informed that he will face disciplinary review, but argues that, given Swagger's training and experience, it is surprising that the president survived and the archbishop standing several feet away was killed. He independently learns that Swagger may have been framed for the assassination and is further made suspicious when he learns that the officer who shot Swagger was himself shot dead just hours later in a "mugging". When the agents realize their secret is compromised, they kidnap Memphis and attempt to stage his suicide. Swagger tails them and kills the captors. The two then join forces and visit a firearms expert who provides information on the FBI's ballistics report and a short list of people capable of taking a shot from a distance of one mile or more. Armed with this, they plot to capture the ex-sniper, whom they think is the real assassin. Once they find him, he commits suicide after revealing that...
The answer is:
Russert