A man had an overdose and took drugs in the years prior to his mother allegedly murdering him by hiding prescription medication in a fruit smoothie, a jury has heard. Maree Mavis Crabtree is alleged to have killed her 26-year-old son Jonathan with an overdose of painkillers on July 19, 2017 in the family’s home north of the Gold Coast, Queensland, before making a $125,000 insurance claim.