A woman branded Australia's worst female serial killer, who has spent 20 years in prison for accused of killing her four children, has been pardoned and will be released immediately.
Kathleen Folbigg, 55, was convicted of murdering her children Patrick, Sarah and Laura, as well as manslaughter of her first child Caleb, who all died between 1989 and 1999.
She has continually maintained her innocence and after repeated appeals and inquiries an Australian judge has now pardoned her.
