My 9 year old, soon to be, step daughter is trying her hardest to push me and my 4 year old daughter away. The other day I wished her good morning and she responded by telling me my daughter was dead..when I said "what?" She answered with "ya she passed in her sleep!" I dont know what to do..whether she thinks she was being funny or not..should I be worried for my baby? This seems to have crossed so many lines..her father hasn't even confronted her yet and it's been 10 days..what do I do?!?