Sigma's hands began to squeeze at the railing, as though he were choking the life from it. So it was his fault his family was here. "Purposefully taking a life is the most atrocious sin one can commit," Sigma asserted quickly. "But if we refuse, they will also kill our loved ones. What can be done?"

He'd tried to play the game by killing Donatello and he hated himself for it. So why bother continuing to kill? What else could they take from him now? They already had his whole world. In the end, he answers against his own emotions. "I've always believed it is better to sacrifice a few than to kill many."