If you are who I think you are then TOL has just gained another homeschooled youth.
I would answer that question by saying that you shall not murder is an instruction that supercedes state's rights. It is a command from God that has not changed one iota throughout the annals of human history.
We are the United States of America, not a bunch of individual countries, but one country. In the instance of "Do not murder", the United States of America needs to have one policy. That policy should be do not murder, regardless of whether we are talking about cities, states, territories, or anything else that would be considered a PART of the United States of America.
This is what needs to happen in my estimation. It should not be left up to each state to decide whether "Do not murder" is a binding law for them.