PLEASE HELP ME MY FRIEND IS TALKING TO GUY IN A CHAT ROOM AND I'M SO SCARED HE WILL

[T_Y_R_A]

COME TO OUR HOUSES? A couple days ago my friend and I were on her computer and she was showing me this guy she had been chatting with a lot. He said he was 16 and that he loved her and wanted to have sex with her and I was welcome to join in every once in a while. That creeped me out and she actually thought he meant all of that after they had been chatting for no more than a couple weeks. I told her that I thought he was really creepy and he was probably some old sicko. Then she told him what I said and she said he was saying he was going to kill me and hang me up on a tree and stuff and he scared her but he said he was sorry and didn't mean it. I told her I wanted her to stop talking to him and I almost told her parents, now I realized I should have. Then she gave him her number and the next day she called me told me some old guy kept calling her and asking what she was wearing and telling her what he wants to do to her but the guy from the chat room said he lost his phone and couldn't call her. I told her I was almost positive that was him and she told him what I said and he went off about killing me again. Then she gave him her ADDRESS and MY ADDRESS SO HE COULD COME OVER AND PROVE ME WRONG! Tonight is when he is supposed to be here and I'm so scared I don't know what to do. My parents are on vacation and they won't answer my calls. PLEASE PLEASE help me!!!! I don't want me or my friend to die I'm so scared help me!!!!