Canada: What happens when a crime victim takes a gun from a criminal and shoots him? The victim goes to jail

Canadian man takes gun from home invaders and shoots on of them; he is now charged with attempted murder and nine other firearms charges. From the Herald News in Nova Scotia, Canada:

A man is charged with attempted murder and a raft of firearms offences after helping fend off home invaders, one of whom he’s now charged with shooting. 

Kyle Earl Munroe was arrested on July 12 after RCMP and Halifax Regional Police responded to a report of a home invasion involving firearms at a home in Porters Lake.
Police said that three men entered the residence with guns and a struggle took place with two men inside. 

The two in the home seized a firearm from one of the suspects and several shots were fired as the suspects fled. Police later located one of the suspects, who had non-life-threatening gunshot wounds. 

Munroe faces charges of attempted murder, intent to discharge a firearm, intent to discharge a firearm when being reckless, careless use of a firearm, improper storage of a firearm, pointing a firearm, possession of a weapon for a dangerous purpose, 

unauthorized possession of a firearm, possession of a firearm knowing that possession is unauthorized, and possession for the purpose of trafficking. . . .