Ah. A state could legalize murder. Okey dokey. So much for the Fifth and the Fourteenth Amendments. You do realize that the Bill of Rights does not agree with you, right?
The death penalty, for example, is legal homicide in some states but not in all states.
The death penalty is not murder.
Look up justifiable homicide. One state's murder is another state's justifiable homicide. It varies from state to state.
Justifiable homcide is not murder either.
That's my point -- it's a state matter, not a Constitutional mandate.
Could a state outlaw religion, the right to assemble peacably, or the right to free speech, and still be within the bounds of the Bill of Rights?
Can a person who has been deprived of their right to live ever enjoy any other right?
Depends what state you're in. What's defined as justifiable homicide in one state would be defined as murder in another state.
The death penalty is not murder.
In some states it is.
Sometimes homicide is murder, sometimes it isn't, and the rules vary from state to state. Don't like your state's laws, either change them or move to another state. Just don't pretend the Constitution *requires* your state to have the *specific* laws *you* just happen to prefer.
Btw, "murder" is normally understood to mean the *unlawful* killing of another, so talking about legal murder (which means legal unlawful killing) is just another oxymoron.