"Neither the coroner's office nor the Los Angeles Police Department have advised Dr. Klein or his representatives that he is a target of their investigation," said Charnley. "Reports in the media claiming that Dr. Klein is allegedly not cooperating in the investigation surrounding Michael Jackson's death are patently false."
Detectives have already questioned Dr. Conrad Murray, the Las Vegas cardiologist who was at the performer's home when he stopped breathing.
In a statement, Murray's lawyer said Tuesday that his client knew nothing about the treatment Klein provided Jackson. "Never met him, never had any contact with him and he never communicated with him about Michael Jackson," Ed Chernoff said.
Authorities have identified some of Jackson's doctors from the medications and other medical evidence they recovered from the Holmby Hills mansion where Jackson suffered cardiac arrest, according to sources familiar with the investigation.
Those sources also said that some of the medications lacked prescription labels and that officials were trying to determine how Jackson got them.
The investigation into Jackson's death could take a few more weeks, coroner's officials said.
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richard.winton@latimes.com
jeff.gottlieb@latimes.com
Times staff writers Andrew Blankstein, Kimi Yoshino and Harriet Ryan contributed to this report.