As I see it, on abortion, the question is not so much one of morality, as, at what point are rights affirmed for a human being? Is it at conception? Birth? Age 18? Age 21? Age 65? Never?
If a fetus becomes a person at birth, then the right to life does not exist prior to that. If it is at conception, then abortion becomes murder. If it is at age 18, then a parent can kill their unruly child with no consequences. If it is never, then we can remove all murder and manslaughter statutes from the books.
As to executions, Federally, they are Constitutional at this time. Individual states are free to address the issue for state crimes of their own accord. The U.S. Constitution merely permits executions, it does not mandate them.