Travis Baumgartner , the man accused of killing three people during a robbery attempt at a Canadian university , was arrested Saturday by U.S. border officials in Washington , police said . He was caught while attempting to cross into the United States at the Lynden , Washington , U.S.-Canada border , south of Abbotsford , British Columbia . `` We 're grateful to the border officials at Lynden , Washington , for their excellent work in arresting a man we believe was armed and extremely dangerous , '' Bob Hassel , superintendent of the Edmonton Police criminal investigations division , said in a statement . Baumgartner -- who was driving a dark blue Ford F-150 with what was likely his mother 's license plate -- will be brought back to Edmonton , the statement read . His arrest ended a 36-hour manhunt . Edmonton police say Baumgartner is behind the Friday robbery of an armored vehicle at the University of Alberta . The shooting left three security employees dead and a fourth critically injured . Canadian authorities filed warrants for three counts of murder for the 21-year-old man , who worked at the same security firm as the victims . He `` is believed to be one of several armored company employees that attended the U of A around midnight '' on Friday `` to make a delivery , '' Edmonton police said in a statement . Before his capture , both police and his mother begged Baumgartner to turn himself in . `` Trav , as your mother , I ask that you come forward now and take responsibility for your actions , '' said Sandy Baumgartner , according to the Edmonton Police Service . `` Please Travis , I love you , and I 'm pleading with you with all of my heart , to end this without further bloodshed . As your mother , I promise to you now , that I will be there by your side to support you . '' Canadian police prepare murder warrants against man sought in Alberta shooting .
The arrest ends a 36-hour manhunt . A police officer stands guard outside the apartment building where suspect James Holmes is believed to have lived in Aurora, Colorado on July 20, 2012. He will be brought back to Edmonton , Canada . Baumgartner is suspected of killing three people during a robbery attempt at the University of Alberta .