Travis Baumgartner is to have a trial instead before a judge alone when the case starts on Sept. 9.
A justice spokeswoman says Baumgartner's lawyer requested the change and the Crown agreed to it.
The G4S guards were working a night shift and reloading ATM machines at the University of Alberta when they were shot last summer.
Three died at the scene but a fourth survived.
Baumgartner was arrested the next day at the U.S. border with $334,000 in a backpack.
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