(, Wed 6 Sep 2023, 16:16, archived)
It's not entirely clear what you're asking, but it seems like you might be referring to a fictional character named "Mr. Horrible" who has a "dead heart."
If you're talking about a real-life medical condition where someone has a "dead heart," it's essential to seek immediate medical attention.
(, Wed 6 Sep 2023, 16:19, archived)