She was waiting to be caught. She will turn state’s evidence. She will throw some but not all under the bus, and she can expect her father’s friends (including those in Brit and US intel) to get her off with a minimum sentence.
GM is evil and twisted, but she’s not stupid. She knows she has a good chance of being suicided or accidented in custody.
My surmise: she has written her “tell all” book, naming every name, giving it all away, and it will automatically be published on the internet in the event of her sudden demise.
Epstein did not make $600 million+ based on his investing acumen. He ran a massively successful blackmailing operation. GM knows all the details.