ManslaughterManslaughter is a common law legal term for homicide considered by law as less culpable than murder. The distinction between murder and manslaughter is sometimes said to have first been made by the ancient Athenian lawmaker Draco in the 7th century BC. The definition of manslaughter differs among legal jurisdictions. Voluntary manslaughter For voluntary manslaughter, the offender had intent to kill or seriously harm, but acted "in the moment" under circumstances that could cause a reasonable person to become emotionally or mentally disturbed.
Criminal negligenceIn criminal law, criminal negligence is an offence that involves a breach of an objective standard of behaviour expected of a defendant. It may be contrasted with strictly liable offences, which do not consider states of mind in determining criminal liability, or offenses that requires mens rea, a mental state of guilt. To constitute a crime, there must be an actus reus (Latin for "guilty act") accompanied by the mens rea (see concurrence).
Felony murder ruleThe rule of felony murder is a legal doctrine in some common law jurisdictions that broadens the crime of murder: when someone is killed (regardless of intent to kill) in the commission of a dangerous or enumerated crime (called a felony in some jurisdictions), the offender, and also the offender's accomplices or co-conspirators, may be found guilty of murder. The concept of felony murder originates in the rule of transferred intent, which is older than the limit of legal memory.
Transferred intentTransferred intent (or transferred mens rea, or transferred malice, in English law) is a legal doctrine that holds that, when the intention to harm one individual inadvertently causes a second person to be hurt instead, the perpetrator is still held responsible. To be held legally responsible, a court typically must demonstrate that the perpetrator had criminal intent (mens rea), that is, that they knew or should have known that another would be harmed by their actions and wanted this harm to occur.
MurderMurder is the unlawful killing of another human without justification or valid excuse, especially the unlawful killing of another human with malice aforethought. This state of mind may, depending upon the jurisdiction, distinguish murder from other forms of unlawful homicide, such as manslaughter. Manslaughter is killing committed in the absence of malice, brought about by reasonable provocation, or diminished capacity. Involuntary manslaughter, where it is recognized, is a killing that lacks all but the most attenuated guilty intent, recklessness.
Mens reaIn criminal law, mens rea (ˈmɛnz_ˈreːə; Law Latin for "guilty mind") is the mental state of a defendant who is accused of committing a crime. In common law jurisdictions, most crimes require proof both of mens rea and actus reus ("guilty act") before the defendant can be found guilty. The standard common law test of criminal liability is expressed in the Latin phrase actus reus non facit reum nisi mens sit rea, i.e. "the act is not culpable unless the mind is guilty".
