Defence lawyer Peter Royal also told court Monday that the province has denied legal aid to his client Jayme Pasieka. Royal said he plans to appeal the decision to Court of Queen's Bench.
Pasieka, 30, appeared briefly in court on closed-circuit TV from the Edmonton Remand Centre. He is charged with first-degree murder, attempted murder, aggravated assault and weapons-related offences.
Police have said a man with a knife in each hand and wearing a military-style vest randomly slashed and stabbed workers as he walked through a huge Loblaws complex on Feb. 28.
Pasieka, an employee at the warehouse, was quickly identified as a suspect and arrested later that day.
Court documents used to obtain search warrants allege Pasieka had earlier been drinking alcohol in his apartment. They say he armed himself with two small knives and bought two bigger military knives at West Edmonton Mall before heading to Loblaws for his afternoon shift.
Thierno Bah, 41, and Fitzroy Harris, 50, were killed and four others were wounded in the bloody attack.
Pasieka is to again appear in court June 9.
Other court documents show a psychologist had earlier determined Pasieka expressed paranoid ideas and a family member suggested he had schizophrenia.