Nightwing #2 by Chuck Dixon

Newly arrived in a decaying port city, a determined vigilante digs deeper into a string of mob killings and discovers how deeply corruption runs through the police and political ranks. After tense encounters on the docks and a punishing fight that puts him squarely on law enforcement’s radar, he begins mapping the city’s criminal network and realizes a powerful figure is orchestrating the chaos. Undeterred by the danger, he commits to making the city his new battleground and starts laying the groundwork to take its underworld apart.