A sister's last almost inaudible message to her brother

I have a video my sister sent me the night she died but the video and audio is such poor quality that I don't know for sure what is being said. I suspect foul play and there is more than her in it but the other person doesn't want to be heard and I'm almost positive it was tampered with before it reached me. I know my best friend is trying to tell me something. You can almost clearly hear her say "and their trying to kill me? Haha hahaha"