Special guest David Challen, the son of Sally Challen, who is currently in prison serving an 18 year sentence for the murder of Richard Challen in 2011.During her trial jurors were told that she attacked him with a hammer whilst he ate his lunch at the kitchen table of the former marital home.David is leading the charge to free his mother from prison and tells Laura about what it was like growing up at home and what his mother and father's relationship was really like behind closed doors.