Destroyer by Robert Kirkman

Collecting Destroyer (2009) #1-5; Usa Comics 70th Anniversary Special; And Material From Mystic Comics (1940) #6, Midnight Sons Unlimited #9 And Marvel Comics Presents (1988) #156. For sixty years, Keen Marlowe has been a super hero, taking down bad guys, fighting the good fight. But it's about to come crashing to an end. See, Marlowe is dying - maybe today, maybe tomorrow, the only question is when. But Marlowe isn't about to go quietly into the night. Before he goes, he intends to leave the world a safer place for his family. And if that means hunting down - and murdering - every super-villain he can, so be it. They don't call him "Destroyer" for nothing.