Valdez Is Coming by Elmore Leonard

In a rugged frontier town, a humble and principled Mexican-American lawman finds himself embroiled in a deadly conflict after a tragic misunderstanding leads to the wrongful death of an innocent man. Seeking justice and compensation for the man's widow, he confronts a powerful and ruthless landowner who dismisses his pleas with violence. As tensions escalate, the lawman is forced to draw on his inner strength and resourcefulness, embarking on a relentless quest for retribution against those who wronged him, ultimately becoming an unexpected hero in a tale of honor, vengeance, and redemption.

Purchase from Bookshop.org