Should casy anthony's life be spared for her parents sake?

now i fully feel casey deserves death for the crimes she committed not even counting the lies , however it is plain that this whole ordeal , has all but killed george and cindy anthony , so after the horrible events that have fallen on them , should they be put through the added ordeal of seeing their daughter put to death as well! wouldn't live without parole , be justice served, and george and cindy's grief lessened however slightly