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.
Someone suicidal; someone likely to kill themselves.
Likely to commit, or to attempt to commit, suicide.
Extremely reckless.
Highly likely to certain to result in the deaths of the participants; dangerous or reckless to such a degree as to be tantamount to suicide for those taking part.
Pertaining to suicide.