Darold Stenson, the man who was/is slated to be executed in Washington state on December 3rd has been granted a stay of execution by federal courts in Yakima County and in the Clallam County Superior Court. (Those are authorities within Washington state.)
Apparently the stay is based on the fact that, last month, Washington state changed its procedures for administering lethal injections, without going through a formal announcent of changes and without going through the typical rule-changing process. (Although, you have to forgive me here, I just had my wisdom teeth out, this is all slightly complicated, and my head is a little foggy with pain meds.)
Rob McKenna, Washington state's attorney general, is working on an appeal of the decision. Here's a link from McKenna's website where they outline the history of the case and just what is happening now. (Thank goodness for other resources when I'm not at 100%.)
If McKenna's appeal is successful, my understanding is that it would undue the stay of execution and Stenson could still be executed on the 3rd. On the other hand, Stenson's execution could alternately be postponed indefinitely.