Margaret Dale Hawke is an Australian woman who pleaded guity to murdering her three children.[1]
https://www.msn.com/en-au/news/australia/margaret-hawke-pleads-guilty-to-triple-murder-of-children-after-port-hedland-house-fire/ar-AA15vyhf
https://wikibioprofile.com/margaret-dale-hawke-wiki/