Bestselling novelist James Ellroy introduces this year’s collection of the finest mystery writing. Many of the contributors herein are novelists themselves, displaying their talents in short story form: Michael Connelly tells a fatal tale of revenge in “Two-Bagger.” In Joe Gores’s “Inscrutable,” the Feds beat the Mafia at their own game. Stuart Kaminsky demonstrates how horribly wrong things go when a robber gets cocky in “Sometimes Something Goes Wrong.” And Robert B. Parker shows just how important Jackie Robinson’s fans can be in “Harlem Nocturne.” Also featured are veterans of the short story form and favorites of this series. Brendan DuBois’s “A Family Game” introduces a former Mafia...