Dr. Conrad Murray Sends Message to Paris Jackson -- 'You Are Not Alone'

Dr. Conrad Murray has outdone himself ... this time sending an audio message to Paris Jackson, telling her he'd like to help her figure out what's eating her.

Murray used a pay phone to send what he calls a "letter" to Paris, telling her "I don't know if there's anything to do to solve your pain," adding, "I'm here for you."

The message is bizarre ... Murray also uses the title of a Jackson song, "You Are Not Alone." He also uses verses from "Ain't No Mountain High Enough" and "You've Got a Friend."

And there's this ... Murray mentions that Paris consoled him "in [her] deepest moments of grief."