The death penalty for the crime of first degree murder with aggravating circumstances

The death penalty is a very controversial subject. Many people are opposed to the death penalty while many people still support the death penalty. Today in the United States, people are only likely to be sentenced to death if they are convicted of a first degree murder with aggravating circumstances.
• Do you support the death penalty for the crime of first degree murder with aggravating circumstances?
• Support your position with at least three arguments.
• Use empirical research and case law to support your position on this issue.