Jesus. Just googled the update. I am so sorry for your wife and you and all of your and their loved ones.
Why did they have to kill them for a robbery? Were they on drugs or something? That's just messed up.
I am very sorry for your wife and hope she will eventually come to terms with her loss. Kudos to you for your understanding and support for her. The death penalty or maximum punishment will not bring peace and closure for you or your wife, but I agree that death or life is not sufficient for them. We can always hope that they burn in hell for eternity.