In James Ellroy‘s new “Red Sheet,” it’s October 1962 in Los Angeles, and in the wake of the Cuban Missile Crisis, the city is on edge with rumors of communist sleeper cells and hit squad conspiracies.Detective Freddy Otash is back in the Los Angeles Police Department, given a badge to do the dirty work the department wants but can’t or won’t do itself. Surrounding him as the story spins out is a slate of real-life figures turned into fictional characters, including gubernatorial candidate Richard Nixon, Playboy founder Hugh Hefner, and Tom Bradley and Daryl Gates, rising forces in Los Angeles...