To whosoever this may concern. It has been interesting to see so many of so called friends of Mark who originally maintained that there was "absolutely no way that Mark could have committed these murders", change their testimony to " knowing it was him all along" or such like as soon as they perceived the tide of public opinion had turned against Mark. For myself it was quite the opposite. I can remember first being told about the murders, and having said to those defending Mark at that time that statistically he would have to be the prime suspect. But then, having more and more doubts the more I learned, and changing my mind the more it became apparent the police case against Mark was at best a very weak and poorly constructed one.
The one thing we do know for sure is that the murders took place. And if Mark didn't do them then someone else did, and presumably had a motive to do so.
All the best in your quest for truth and justice.