AMAZING SPIDER-MAN (1963) #656

The debut of the NEW SPIDER-ARMOR! If Spider-Man hopes to find a way to defeat his new nemesis MASSACRE, he’ll need the help of his all new, all-power costume! But will protecting the people of New York mean that Spider-Man finally takes the last measure– killing a bloodthirsty madman when there are no other options? (by the way, your first answer is wrong!)