Second-degree murder is a type of homicide that is less severe than first-degree murder. It is defined as an intentional killing that was not premeditated. The exact definition of second-degree murder varies by jurisdiction, but it typically involves malicious intent without premeditation. The mens rea of the defendant is intent to kill, intent to inflict serious bodily harm, or act with an abandoned heart (e.g., reckless conduct lacking concern for human life or having a high risk of death) . In some states, second-degree murder also encompasses "depraved heart murder," which is a killing caused by a reckless disregard for human life. Second-degree murder is often seen as a catch-all category for intentional and sometimes grossly reckless killings that do not fall within a states definition of first-degree murder. The punishment for second-degree murder is less severe than that for first-degree murder, and capital punishment is not available for a second-degree murder conviction. Lack of mens rea can be a defense to reduce murder to manslaughter.