Four Calgary Police constables have been cleared of any wrongdoing after a five-month investigation into the non-fatal shooting of a man believed to be suffering from a mental illness, according to the independent investigator conducting the review.

The investigation by the Alberta Serious Incident Response Team (ASIRT) concluded that four officers were called to a downtown Calgary apartment building in May and were encountered by a man with a large knife. According to information provided by ASIRT, the police told the man to put down the knife several times.

After refusing to give up the knife and confronting officers, one constable shot the man with a rifle, leaving injuries to the arm, abdomen and back, said Clifton Purvis, director of ASIRT.

“I am satisfied the members of the Calgary Police Service were justified in their actions, and no charges will flow as a result,” Purvis said.

It’s believed the man, who is currently being treated for his mental illness, intended for police to shoot and kill him during the confrontation, ASIRT concluded.