Strewth, Kat - What a desperate situation. Unreal. Sounds like somehow yr sister has been forceibly drugged...could this fellow have stuffed drugged drink into her? That's the only thing that makes any sense. And now 'he' is playing the 'sorrowing b.f.'!!
Strong thoughts and prayers for an outcome, a release from these frightful times. Yes. Get the youngsters away, some place safe where that b.f. will not be able to locate them. TG for you and yours being there, being such bricks, stalwart support. Many hugs my dear.
Molly C (France)