Many areas in the US with tough Gun laws don't work because there're state or local laws, not national. A short trip across the state, city, or county line and you have access to plenty of guns with few restrictions. Hawaii which is isolated has some the toughest gun laws in the country and sports one the lowest murder rates. Other countries with strict gun laws confirm the fact that strict national gun laws lowers the murder rate.
Ding, ding, ding, ding, ding!
Now if you can put 2 and 2 together...
Guns + Guns = Lots of dead people.
Yep..easy equation.
One which you have no solution to, so what's your point?
And you're clueless believing that when you have criminals and nut jobs that even if you could get rid of the guns that would solve the problem.