John Elliott was suffering from an illness over the past 15 or 16 months. His son, Tom Elliot, shared his father was ill but failed to disclose the illness.
John was born on 3 October 1941, in Melbourne, Australia. After completing his secondary schooling at Carey Baptist Grammar School, he attended the University of Melbourne and graduated with a Hons degree. Later, he completed a Master of Business Administration degree at the Melbourne Business School.