Natasha tried to convince her children that she'd kept Mark's awful secret to protect them. But all they knew was that Mark had torn their family apart. Faye was beside herself when Ryan went walkabout and she couldn't find him anywhere. Later when Mark was alone at Home Farm, he wrote Natasha a letter and headed off into the woods - with his shotgun. But he wasn't the one who pulled the trigger. Who shot Mark? (thetvdb.com)