An unlawful murdering and accused has defensive behavior to protect himself because of his action of murder is called manslaughter. There are three types of manslaughter involuntary, voluntary, and constructive. If anybody do not want to kill anybody and he is killed accidently is called involuntary manslaughter. There are concessions of punishment for those people which are suffered due to these types of incidents. People are not punished for these crimes because they do not have deliberate intension.