Last week, prosecutors in Colorado announced that they would be seeking the death penalty for James Holmes, the Aurora, Colo., theater gunman. Last July, Holmes opened fire on a crowded theater at a midnight showing of “The Dark Knight Rises,” killing 12 and wounding 58. If ever there was someone who deserved the death penalty, it would be Holmes. He murdered...

Prosecutors in Colorado decided Tuesday to seek the death penalty for James Holmes, the infamous Batman shooter in Aurora, Colo. The news was met with a round of applause in the courtroom, which included many victims’ families and Holmes’s parents. As I read news articles detailing the way the courtroom crowd reacted, I gave a lot of thought about what I would do in...