<P> Meanwhile, other rogue mercenaries have kidnapped Sarah to lure Swagger out of hiding . With his new evidence and cat and mouse strategy, Swagger and Memphis are able to rescue her when Colonel Johnson and Senator Meachum arrange a meeting to exchange their hostage for the evidence of their wrongdoing . The Senator is allowed to escape, while Swagger and Memphis surrender to the FBI . </P> <P> Later, Swagger is brought before U.S. Attorney General Russert and the FBI director in a closed - door meeting with Colonel Johnson, Memphis, and Sarah also present . Swagger quickly clears his name by loading a round into his rifle (which is there as evidence since it was supposedly used in the killing), aims it at the Colonel and pulls the trigger--which fails to fire . Swagger explains that every time he leaves his house, he removes the firing pins from all his guns, replacing them with slightly shorter ones, thus rendering them inoperable until he returns . Although Swagger is exonerated, Colonel Johnson cannot be charged with his crime as the Eritrean massacre was outside American legal jurisdiction . The attorney general tells Swagger that he himself must abide by the law . "It's not the Wild West where you can clean up the streets with a gun, even though sometimes that's exactly what's needed ." Russert then orders Swagger released and exonerates him of all charges . </P> <P> Afterwards, as Johnson and Senator Meachum plan their next move, Swagger breaks in and kills both conspirators, arranging for the house to blow up as if by accident . In a final scene, he drives away with Sarah . </P> <Ul> <Li> Mark Wahlberg as Gunnery Sergeant Bob Lee Swagger </Li> <Li> Michael Peña as Special Agent Nick Memphis </Li> <Li> Danny Glover as Colonel Isaac Johnson </Li> <Li> Kate Mara as Sarah Fenn </Li> <Li> Ned Beatty as Senator Charles F. Meachum </Li> <Li> Elias Koteas as Jack Payne </Li> <Li> Rhona Mitra as Special Agent Alourdes Galindo </Li> <Li> Jonathan Walker as Brent Dobbler </Li> <Li> Justin Louis as Special Agent Howard Purnell </Li> <Li> Tate Donovan as Russ Turner </Li> <Li> Rade Šerbedžija as Mikhaylo Sczerbiak </Li> <Li> Lane Garrison as Lance Corporal Donnie Fenn </Li> <Li> Alan C. Peterson as Philadelphia Police Department Officer Stanley Timmons </Li> <Li> Brian Markinson as Attorney General Russert </Li> <Li> Levon Helm as Mr. Rate </Li> <Li> Mike Dopud as Lead Mercenary </Li> <Li> Paul Alexander Warren as Secret Service </Li> <Li> Dean McKenzie as Archbishop </Li> <Li> Logan as Bob Lee Swagger's Dog </Li> </Ul>

Where was the last scene of shooter filmed