Vermont has allowed people to carry a concealed weapons without a license - literally buy a handgun, stick it in your pants - and has had a consistently lower murder rate than Washington DC which banned handguns until recently.
I meant more in comparison to other nations in Europe for example. It's difficult to compare individual states within the US because of how guns travel across state lines.
Czech Republic has very liberal gun laws, you can get a concealed carry permit with less effort than some US states and the murder rate is 0.72 per 100,000.
Vermont has allowed people to carry a concealed weapons without a license - literally buy a handgun, stick it in your pants - and has had a consistently lower murder rate than Washington DC which banned handguns until recently.