An act that constitutes the crime of first-degree murder.
The criminal offence of murder in a form considered by law to be the most serious; the precise distinction may vary by jurisdiction but typically involves premeditation, or the choice of victim or other circumstances being regarded as especially blameworthy.
The murderer of a child: a person who has committed infanticide.
The murder of an infant.
The criminal offence of killing of a newborn, committed by its mother while psychologically disturbed by the effects of childbirth or lactation, not regarded as murder.
The killing of a young, immature animal by a mature adult of the same species.
The murder of a child by a parent; filicide.