Oliver Peterson: Australian correspondent on police investigating potential cannibalism in NSW pre-schooler death

New South Wales police are investigating whether a preschooler's death involved cannibalism. A mother has been charged with murder after her 4-year-old son's body was found with significant arm injuries at a property in the Central Coast's Wyong.   Police say the 32-year-old arrived at a police station on Saturday afternoon of her own accord.  Australian correspondent Murray Olds says the woman has been arrested and authorities have described the case as 'confronting' as investigations continue. LISTEN ABOVESee omnystudio.com/listener for privacy information.