DO NOT COMMIT MURDER
Murder is the killing of another person without justification or valid excuse, and it is especially the unlawful killing of another human being with malice aforethought. This state of mind may, depending upon the jurisdiction, distinguish murder from other forms of unlawful homicide, such as manslaughter.
Most societies, from ancient to modern, have considered murder a very serious crime deserving harsh punishment for purposes of retribution, deterrence, rehabilitation, or incapacitation. There are many reasons why murder has been criminalized, including its costs to society as well as its intrinsic wrongness.For example, murder may be considered intrinsically wrong because it violates a right to life, or objectifies the victim, or is oppressive; murder may be costly to society by undermining law and order, by squandering potential accomplishments of the victims, by risking escalation of violence, or by spreading fear and grief.