On the final day of the coroner's inquest, a tearful Sue and Lloyd Clarke (pictured, left) said if they had the chance, they would probably ask Hannah's estranged husband Rowan Baxter, 'why?'. Rowan Baxter, 42, had set fire to Hannah Clarke and her children Aaliyah, six, Laianah, four, and Trey, three, (pictured, right) during a school run at Camp Hill, in Brisbane 's south, in February, 2020.