It refers to the killing or death of a person by another sane person unlawfully and proved to be under no authority to kill or with the intent of killing the other because of malice or revenge. Murders fetch highest of punishments.The foirms of murders are different and described separately in court of law, depending on which they are termed first degree or second degree murders where the punishment level differs. If a death of a person happens after one year of the attack, the attacker cannot be charged for the murder. If the death is intentional and pre planned, it is a first degree murder. It can also be a result of negligence or recklessness, where a heavy bodily harm may or may not be intended, will have less serious impact, though still a serious matter.