FREAK by Jennifer Hillier
The one thing that just kept occurring to me as I read this book was that it should be called Freaks, because one Freak seems to draw out more.
Hillier does a great job at suspense. She gives you enough hints and foreshadowing that you are are not shocked by the characters true natures, but you're left wondering just how they will tie together right up until the end. She weaves an intricate and well crafted story that you will not want to put down until you see it through.
The crime scene you won't want to see, but can't look away from... Freak takes right up where Creep left off and draws you further in to the minds of crime fighters, victims, and of course FREAKs.