Totally disagree with the above statements. It's the responsibility of everyone in the community to stand up and show who has been lying to cover for the SK. That being said, I'm not entirely convinced Fluke isn't the killer himself. He knew where to look for Shannan, according to a poster at LISK, he's friends with JB and SY, and he's really inserted himself into the investigation like Dr H. Still, whoever was going to kill Shannan was at JB's house that night (unless they are part of a group and brought her to Dr H/SY whoever) that's why I've always believed the killer to be The Drifter.
Apparently there are TWO DRIFTERS...One named PA and one named Lenny
And in an interesting twist of fate...Peterf14's POI will soon be leading the case as Chief Investigator