Oklahoma Manslaughter in the First Degree by Misdemeanor-Manslaughter — Elements is a type of criminal homicide that is defined by the state of Oklahoma. It is classified as an Unlawful Killing, as opposed to a lawful killing, such as self-defense or execution. In order to be convicted of this crime, the prosecution must prove beyond a reasonable doubt that the defendant acted intentionally, knowingly, or recklessly in causing the death of another person. The two types of Oklahoma Manslaughter in the First Degree by Misdemeanor-Manslaughter — Elements are voluntary and involuntary. Voluntary manslaughter is defined as an intentional or knowing act that results in the death of another person. Involuntary manslaughter is defined as a reckless or criminally negligent act that results in the death of another person. In order to be convicted of Oklahoma Manslaughter in the First Degree by Misdemeanor-Manslaughter — Elements, the prosecution must prove that the defendant acted in one of the above ways, and that the act was the direct and proximate cause of the victim’s death. If convicted, the defendant could face up to four years in prison and/or a fine of up to $1,000.