Preview:Kristina and Ned walk in on a suspicious scene. Recap:Carly diverted attention away from Sonny by admitting that she had pulled the plug on Sorel. She also crushed A.J. when she revealed Sonny's intention to adopt Michael. Mike stirred up more commotion when he admitted to smothering Sorel. Melissa went one step further by saying that she had rigged Sorel's pulse monitor. Mac thanked his guests for their honesty, but he said that the real killer had turned Sorel's respirator off, and then back on again. Stefan propositioned an incredulous Stavros about joining forces and overtaking Helena. Nikolas convinced Laura that he had to help her acquire the antidote for Luke's progressing disease. However, once they arrived at General Hospital, they found the entrance to Helena's lab sealed off. Laura discovered that Nikolas spoke his true feelings of hatred to his seemingly dead father, forcing her to admit that Stavros is alive. Nikolas worried that his cover had been blown. Ned and K