Slaughtered or killed by oneself.

That has committed suicide.

That has been killed or destroyed by one's own hand, esp. (of a person) that has committed suicide.

Of a person: slain or killed by his or her own action. Formerly also: †(of another person) slain by oneself (obsolete).

That has sacrificed or killed oneself, now esp. by setting fire to oneself as a form of protest. Often figurative and in figurative contexts.

That has died by suicide; that has brought about one's own destruction.