The Truth Shall Make You Dead: A Nacho Perez Detective Story

Nacho Perez, a retired Marine gunnery sergeant turned private eye, confronts a corrupt political machine in a rural Texas county. They kill his primary witness, but he persists. They kill other witnesses who come forward. When he remains undeterred, they try to kill him. Unsuccessful in killing him, they go after his daughter. That is when they come to understand the admonition: no better friend, no worse enemy.