Contact Hotmail via email, and provide all the important information (that used to exist):
- Email address
- Alternate email address
- Full name
- Location
- Password
- Security question
- Age
- How long you've had the email address
- The threats you've recieved
- Your current email address (for confirmation)
Another helpful thing to do would be to send the message from your (old) alternative email address. Hopefully, they will respond and help you out.

Good luck.