Jason Mazurek disappeared from Wrest Point Casino in Hobart on the 15th of September 2002. After CCTV footage captured him exiting through the main doors of the casino he was never seen again. I'm Tess Nikitenko, a psychologist and journalist investigating Jason's disappearance. I remember when Jason went missing - he was aged 20 and I was 16. I'd been to the night spot he was last seen at. 23 years later, the memory of Jason hasn't left me and I'm determined to find out what happened to him. People don't just disappear.