The six-week trial in Paris has been watched by David's daughter Bethany, 27, who is determined to find his remains.
David, from Perth, was abducted while working at a refugee camp in Syria in 2013.
He was executed on film by an Isis gang dubbed the “Beatles” due to their British accents. Two of them, Alexanda Kotey and Elsh-afee El Sheikh, are serving life sentences in ...