Manslaughter, murder, and homicide are all conisdered felonies in Arizona with severe consequences upon conviction. Homicide refers to the killing of one person by another, covering both legal and illegal killings. There are many situations where killing a person is not considered a crime, such as in a war or self-defense. The distinction between legal killing and illegal killing is what determines murder versus homicide. Murder is the intentinoal killign of another person with premeditation and planning to do so. Manslaughter refers to unintentional killing of another person, without premeditation.