According to this chappy:
https://medium.com/@TheHimmmm/nasty-business-part-three-a-himmmm-blind-item-story-764a1aac643f
Ghislaine has loads of dirt on the Royals from the days she ran with her daddy and ever since. Also, Maxwell is using the Royals to lean on a certain Russian who can help her disappear.
Lots of people are worried about what Ghislaine has in her ‘collateral’ files...
...and I don’t think anyone wants her offed until they can locate and disable whatever dead man’s switch she has.
Ah, very interesting.