Nightwing #4 by Chuck Dixon

Digging deeper into Blüdhaven’s corruption, the hero follows a trail of bodies to a confrontation with a deadly British mercenary hired by the city’s criminal elite. Their clash underscores the scale of the rot he’s up against, while a crooked detective maneuvers in the shadows and a powerful crime boss tightens his hold on the city, pushing him to commit even more firmly to cleaning up Blüdhaven.