The tension in this episode was excellent, beginning to end. So many people all learning the same shocking news at the same time, all of whom had a close relationship with Derek. They each react differently, but in ways that truly reflect their individual character. Great acting. The writing was excellent too, in that the previous episode, focusing on informing families of a loved one's death, relates back to how atrocious Penny was at that, and it also relates to how Meredith is undergoing a current trauma being faced by the person who she will always remember as the person who told her that her husband died. Irritating, however, how it never comes out that Penny had known the right course of action and how much she had pushed for it. They keep saying she killed Derek, but it was her attending who killed him, not her. Maybe it's the lawyer in me, but Penny did her due diligence!