Paul McGrath novels

"An Army veteran and intelligence agent goes undercover as a janitor at a federal courthouse to pursue his own brand of justice in a thriller that's part John Grisham, part Robert Crais. As a young man, Paul McGrath rebelled against his pacifist father by becoming a standout Army recruit and the star of his military intelligence unit. But lingering regrets about their relationship make him return home, only to find his father dead, seemingly murdered....