There was no official confirmation, but an RCMP plane landed at the downtown airport just before 2 p.m. MT and pulled into a hangar.
Three police cars, two with lights flashing and one with the windows blacked out, were then seen leaving the airport.
Travis Baumgartner was being held in B.C. after he was arrested at a U.S. border crossing near Abbotsford on the weekend with $330,000 in a backpack.
Police say Baumgartner was one of five security guards working for G4S Canada who were loading a bank machine at the university just after midnight Friday when shots rang out.
Baumgartner is expected to be formally charged with three counts of first-degree murder and one count of attempted murder.
