To Save A Mockingbird (Paperback) (ISBN-13: 9798230584155)

A close protection officer taking a bullet while shielding their principal - a normal hazard of the trade. However, when a close friend is shot on a low paid contract and the shooter turns out to be one of their own, Drew Parker vows to catch him.
In so doing he unearths a conspiracy with far reaching international implications but the FBI dismiss his findings, and he's forced to find ways to expose the plot without directly going head-to-head against the pariah state behind it.