The first murder in 500 years. Twenty billion suspects. One hope.The City Enduring, a booming metropolis at the edge of the universe, hasn’t experienced a violent crime in generations. The Emotion Exploit has erased its citizens’ full range of feelings, allowing three resident races to overlook their turbulent history and coexist peacefully—until now.  Rookie Green Lantern Sojourner “Jo” Mullein is still adjusting to her assignment to protect this strange world when a brutal