Adamant

FBI serial killer hunter Hank Rawlings is knee-deep in dead bodies.
Prison guards. Inmates. Innocents. A pair of sheriff’s deputies. A soccer mom. All murdered by an escaped con named Charles “Chuck” Burr, a man who has cut a bloody path from Louisiana to Texas.
For Hank, the assignment is easy: find Burr and bring him to justice. With everything pointing to the Waco area, the bureau is quickly nipping at their target’s heels.
But Burr will choose death over being put in another cage. He finally has his freedom, and he’ll kill anyone that tries to take that from him—FBI agents included.