You might want to consider using attainder - the extinction of a person's civil rights resulting from a sentence of death. It isn't a very common word and is certainly rather archaic. But I believe that it almost exactly means what you intend to convey.

You might want to consider using attaint (to pass judgment of death or outlawry upon) or attainder (the extinction of a person's civil rights resulting from a sentence of death). These aren't very common words, they're legalistic and they're both rather archaic. But I believe they mean almost exactly what you intend to convey.