The Crestwood Killings: Zero Tolerance (Paperback) (ISBN-13: 9798278748120)

When a troubled high school turns violent, everyone blames the students.
Detective Marla Ruiz knows better.

Crestwood High has been spiraling for years-fights, disappearances, unexplained outbursts-but nothing prepares Ruiz for the string of brutal killings that shock the school community. The prime suspect is a quiet, well-liked teacher named Dalton Hayes, whose rigid sense of discipline hides darker impulses. But as Ruiz digs deeper, she uncovers someone far more dangerous pulling the strings.

Assistant Principal Morgan Keene.
A man no one notices.
A man who watches everything.
A man who believes chaos must be corrected.

Keene has spent years shaping Crestwood's most vulnerable students and staff, pushing them toward violence in the name of "behavioral balance." Hayes is only one of his creations. The mimic-another. And Ruiz is the newest subject in his evolving design.

When Keene kidnaps her sister and niece, Ruiz is forced into a deadly confrontation inside the darkened school. She survives the night. Keene vanishes. And the pattern he created begins spreading far beyond Crestwood.

Now Ruiz must face a terrifying truth:
some predators don't hunt in the shadows-they build the shadows themselves.

ZERO TOLERANCE is a razor-sharp psychological thriller about control, manipulation, and the quiet monsters who walk among us. Perfect for fans of The Silence of the Lambs, You, and Sharp Objects, this debut in the Crestwood Pattern Series will leave you breathless-right up to the final, chilling twist.