Killer last panel is really interesting...
First, we never saw Killer genuinely angry, with swollen veins and cold sweet. This is a rare mood for Killer and we're seeing it in action for the first time.
His answer is also interesting, while he was raising his voice before "Impossible! Don't tell me the remaining doll is..." in the last panel seems like he's controlling his fury and has already found a solution.
Why? Hawkins is mocking him, after revealing his trick on Kidd's life, he faces Killer with another provocative phrase: "Come, entertain me!"
To which Killer answers with his usual laughter (meaning an underneath emotion) and the following phrase: "Fine, I will give you some entertainment!"
My opinion is that Killer has already made up his mind on how to counter Hawkins dirty trick.
What do you think?