Not really, don't use would, it sounds like you are asking a question, these are better:
1. "The murderer could be sentenced to death." - You can't see the future, this might happen in the future, it's only a possibility.
2. "The murderer will be sentenced to death." - You have current information about the future sentencing, there is no uncertainty.
3. "The murderer will probably be sentenced to death." - This is sort of the same as the first one, you don't know the outcome yet, but have a very good idea of what will happen.