The guessing game

This is the case that I was not completely sure when I saw the episode, but after reading up on the case as well as the book written on this case, i am pretty sure that the husband did it. I really recommend reading the book, which has a lot of details on how David treated Belinda and how their marriages were. It is so sad when you read it. I cannot believe she did not leave him but stayed with him. Maybe she would be still alive if she left him earlier on. Too sad for the son who are left behind and being raised by the person who is a cause behind of what David did. It is very unhealthy situation.