A person commits capital murder if he or she intentionally or knowingly:
Murders a peace officer or fireman who is acting in the lawful discharge of an official duty and who the person knows is a peace officer or fireman;
Commits murder in the course of committing or attempting to commit kidnapping, burglary, robbery, aggravated sexual assault, arson, obstruction or retaliation, or terroristic threat;
Commits a murder for hire;
Murders more than one person:
during the same criminal transaction; or
during different criminal transactions but the murders are committed pursuant to the same scheme or course of conduct; or
Murders an individual under six years of age.