Hopefully Chief Flynn realizes that it is much more effective to take criminals off the streets rather than guns.
It's difficult to get it through the minds of libs and various anti-gun types that people cause crime, not inanimate objects. The state of Wisconsin has millions of gun owners. Outside of the Milwaukee area, gun crime is pretty rare despite the overabundance of firearms.
To stop the gun violence in Milwaukee it will take much tougher measures from the authorities: more cops on the street and tougher measures (stop and frisk, curfews) for the people committing the gun crime.