First of all, if you shoot someone in Texas, you better have a good reason. Otherwise the state is gonna fry you. So everyone knows that. We all have guns and we know how and when to use them.
If you shoot someone in Kalifornia, you really do not need a good reason. What is the worse that will happen ? 5-8 years in jail ? There are people in Kalifornia right now, contemplating if spending 5-8 years in jail is worth killing specific people. So in Kalifornia everyone that has a gun does not know how or when to use them. Thus, even though gun distribution is more restricted in California, there are more murders committed with guns in Kalifornia then in Texas. So Kalifornians have been turned into gun shooting hicks due to poorly written laws and punishments.