ST. ALBERT, Alta. -- Alberta's police watchdog has cleared Mounties in the death of a suspect who holed up in a house after shooting two officers.

The Alberta Serious Response Team says its investigation confirms that Shawn Maxwell Rehn killed himself, and that there was no criminal conduct on the part of the RCMP who were involved.

Rehn fatally shot Const. David Wynn and seriously injured Auxiliary Const. Derek Bond on January 17 when the officers confronted him in a casino in St. Albert about a stolen truck.

Police tracked him to an unoccupied home where they found the door broken and the burglar alarm sounding.

They surrounded the property and tried to make contact, but weren't successful, and then they heard what they believed was a gunshot.

When they went inside, they found Rehn in a downstairs in a bedroom with a catastrophic gunshot wound to his head.