What if Johnny let Sarah die?

Sarah has died many times. The Siege, The Mountain, and many other episodes. What if Johnny couldn't save Sarah. What if Sarah had to die to save the world?

Johnny and Sarah are sitting in the kitchen. They're putting up groceries and discussing little Johnny. "Sarah, I love little Johnny, but I'll never be his father. Walt is." "Johnny you will be his father. He's finally getting to know you and..." Sarah hugged Johnny. He felt himself fall into a vision. This vision wasn't anything close to his normal Sarah visions, it was his vision of the apocalypse. "There's still time. There has to be." "Johnny, what. What did you see?" Johnny went home and cried. He couldn't believe it. He would have felt some kind of emotion if Stillson was the cause of this vision, but Sarah? No, He just couldn't believe it.

He decided to pay his friend Greg Stillson a visit. He walked in and shook his hand. Nothing happened. "Why are you here?" Stillson said. " I'm here ask you employee Sarah Bannerman. What does she do?" "John I am sorry to disappoint you but...wait, no I'm not. She doesn't want her personal file shared. Sorry, Johnny." "Damn it, Stillson. All I want is to save her life and you're being?" Stillson touched him. He saw everything going backwards and he saw himself and Sarah. He saw Stillson shoot Sarah and he saw that the apocalypse wouldn't happen, if Sarah was dead...