Definition: Given a document, find the main entity about whom the author is writing. Write the full name if mentioned in the text. Note that URLs in the text have been replaced with [Link].
Input: Craig Harvey  chief of operations for the coroner's office  said the subpoena was served at Klein's Beverly Hills dermatology office in an effort to obtain "additional medical records."
 Harvey said his investigators had previously served a subpoena on Klein but would not elaborate on the nature of the records that were provided or what additional information led to the second subpoena.
 In an interview with Larry King last week  Klein said that Jackson was using Diprivan "when he was on tour in Germany." It's unclear exactly when that was  but the last time Jackson was on tour in Germany was 1997.
 Klein said that Jackson "was using it  with an anesthesiologist  to go to sleep at night. And I told him he was absolutely insane."
Output:
Klein Klein