The Cold Six Thousand by James Ellroy

Set against the tumultuous backdrop of 1960s America, this gripping narrative delves into the dark underbelly of power, corruption, and conspiracy. The story follows three men—an ambitious FBI agent, a mob-connected ex-cop, and a ruthless hitman—whose lives intertwine amidst the chaos following the assassination of President John F. Kennedy. As they navigate a world rife with racial tension, political intrigue, and organized crime, their personal ambitions and moral dilemmas lead them down a path of violence and betrayal, revealing the sinister forces shaping the nation's destiny.