Spoiler While it isn't explicitly stated, the implications are that Vader killed her. Vader ignited his lightsaber in front of Jocasta and she replied "Ah. So be it", seemingly content with her imminent death - something she attempted to do herself mere minutes before. The vehicle was then crashed and obliterated, most likely to cover the body and any physical evidence that she was killed by a lightsaber. In addition, I can't think of a reason why would Vader let her live. Spoiler More like "New Darth Vader Comic Helps Explain How Rey Is Force Sensitive" The children on the list are nothing more special than Luke, Leia, Anakin, Ezra or any Force sensitive child ever. To have Force abilities one needs proper training. Rey, as far as shown in the movies lacks that for the most part. And I'm saying that as a Rey fan and someone who likes TLJ, no need to pretend like that's not an issue with the character.