Edmonton Police have a person of interest in the fatal shooting of three armoured car employees at the University of Alberta.
21-year-old Travis Brandon Baumgartner is an employee of security company G4S and was with the guards on an ATM delivery overnight at HUB Mall.
Two men and woman died in a hail of bullets just after midnight, and a fourth guard is fighting for his life in hospital.
Police say Baumgartner owns a dark-blue Ford F150 pickup truck with a licence number ZRE724.
They are asking the public to use extreme caution if they encounter him.