'The coroner wants to clear up the cause of death, we share that goal,' he said. 'We don't have access to the most important information in this case, the toxicology report. We're still in the dark like everybody else.'

Chernoff said that Murray's detailed description of Michael Jackson's last days should not make him a target of criminal charges.

'Dr Murray was the last doctor standing when Michael Jackson died and it seems all the fury is directed toward him,' Chernoff said.

Police questioned Murray twice since Jackson's death and seized his car from the rented mansion where Jackson died, but clarified that he is not a suspect.

The raid came as Sony Pictures paid some $60 million for footage shot during Jackson's final rehearsals for his comeback concert engagement in London, according to The Hollywood Reporter. The film will be released Oct 30 and will include several videos that were shot and meant to be shown during the concerts, including an alternative version of Jackson's most famous video, 'Thriller'.

'High School Musical' director Kenny Ortega, who shot the rehearsal footage, is expected to become the director of the film, which could be released before year's end.