Aquaman Vol. 6 (2002-2006) / Aquaman: Sword of Atlantis (2006-2007) #19

Plot

Aquaman and Lorena - who lost her family in the collapse of San Diego - finally come face to face with the man behind the disaster. Why would anyone kill thousands of innocent people and doom thousands more to a life beneath the ocean? One way or another, Aquaman is going to find out!