# Before the Devil Knows (Gus Wheeler FBI Thriller), Vol. 1

By **R. John Dingle**

- ISBN-13: 9781972451212
- Publisher: Tule Publishing Group
- Pages: 422
- Published: 13 May 2026
- Language: en
- Categories: Mystery, Thriller & Suspense, Crime, Thrillers & Suspense, Literature & Fiction, Police Procedurals

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