or second degree or an attempt thereof committed by the defendant. Murder of any police officer, sheriff, deputy, state trooper, federal law enforcement officer, or any other state or federal peace officer of any kind, or prison or jail guard, while such officer or guard is on duty, regardless of whether the defendant knew or should have known the victim was an officer or guard on duty, or because of some official or job-related act or performance of such officer or guard. Murder committed while the defendant is under sentence of life imprisonment. Murder done for a pecuniary or other valuable consideration or pursuant to a contract or for hire. Murder committed during sexual abuse in the first or second degree or an attempt thereof committed by the defendant. Murder committed during arson in the first or second degree committed by the defendant; or murder by the defendant by means of explosives or explosion. Murder wherein two or more persons are murdered by the defendant by one act or pursuant to one scheme or course of conduct. Murder committed when the victim is a state or federal public official or former public official and the murder stems from or is caused by or is related to his official position, act, or capacity. Murder committed during the act of unlawfully assuming control of any aircraft by use of threats or force with intent to obtain any valuable consideration for the release of said aircraft or any passenger or crewmen thereon or to direct the route or movement of said aircraft, or otherwise exert control over said aircraft. Murder committed by an offender convicted of any other murder in the 20 years preceding the crime which constitutes the capital crime under Alabama law at the time; Murder is related to the capacity or role of the victim as a witness. Murder of a victim less than 14 years of age. Murder committed by or through the use of a deadly weapon fired or otherwise used from outside a dwelling while the victim is in a dwelling. Murder committed by or through the use of a deadly weapon while the victim is in a vehicle. Murder committed by or through the use of a deadly weapon fired or otherwise used within or from a vehicle. Murder by the defendant where a court had issued a protective order for the victim against the defendant.