Hi so, my brother has been talking to a girl, lets call her "K". She is very morbid. Now, I can be morbid, but she takes it to another level. The other day, I saw a text between them, it was "the perfect murder". They had a plan for the murder and how to dispose of the body, and where to go and hide. Honestly, it was s***, they would have been caught very shortly (I am into crimminal justice type stuff). But still, it made me very worried because I can see that she is dragging him down. He no longer talks to me like were siblibgs anymore, he has secluded himself from everybody but "K". I have tried to be friendly and talk to her through Facebook. She has yet to read it, and she knows I messaged her because my brother told her. I just all around dont like this girl. I have NO idea what to do. I want to help him, after all, he is my brother/best friend