This is only a thought, not a spoiler. We only saw Lani pull the trigger of her gun. What if Vivian also pulled the trigger at the same time and she’s the one who shot Stefan? They should have the bullet from Kate’s body at the police station. I’m sure they’ll take this one from Stefan’s body. I would much rather see Vivian to be the one who shot him. It would make for a better guilt trip. Plus, I know Gabi has issues with Lani, but it would be better, in my opinion, if her anger is now directed towards Viv.