State with highest murder rate has strictest gun laws. The state is Louisiana. The gun laws are as follows: NO permits required to purchase, NO firearm or owner licenses. Concealed carry permits are issued OPEN CARRY is allowed No assault weapon ban In fact - the ONLY restrictions in the state is you must obtain a permit to sell an AUTOMATIC weapon, short barrel shotgun or rifle, or a silencer. I guess that last one must be why the murder rate is so high.