What happens when the police fail in their duty to protect the populace? The populace gets armed for their own defense:
Justifiable homicide in the city shot up 79 percent in 2011 from the previous year, as citizens in the long-suffering city armed themselves and took matters into their own hands. The local rate of self-defense killings now stands 2,200 percent above the national average. Residents, unable to rely on a dwindling police force to keep them safe, are fighting back against the criminal scourge on their own. And they’re offering no apologies.
I say good on the people of Detroit for defending themselves. Detroit suffered from massive economic collapse due to their over reliance on the automobile industry and when the economy goes bad crime rises. When the crime rises the police are usually the first to run and hide in the safer parts of town leaving those living in the poorer parts of down in a position where they must defend themselves. The anti-gunners would rather these people be dead than have a means of defending themselves against criminals.