Final answer:
Emily Brent feels no remorse for her crime and believes that her actions were necessary.
Step-by-step explanation:
Emily Brent, a character from the novel 'And Then There Were None' by Agatha Christie, shows no remorse for her crime. In fact, she takes pride in her actions and believes that she was justified in betraying others. This is evident in the quote, 'I had to do it. I would do it again.' Brent's lack of remorse and her belief that her crime was necessary adds depth to her character and contributes to the tension and mystery of the story.