Dr. Conrad Murray's criminal defense team has been dealt a crushing blow when the judge presiding over his involuntary manslaughter trial, ruled that Michael Jackson's dermatologist and long time friend, Dr. Arnold Klein won't be allowed to testify.
Dr. Murray wasn't in court for the pre-trial hearing on Monday in Los Angeles.
Judge Michael Pastor agreed with the LA County DA's Office -- which opposed the defense's attempt to call Dr. Klein as a witness in the trial.
Judge Pastor also ruled that no testimony would be allowed regarding past allegations of child abuse and molestation involving Michael Jackson. However, two doctors that gave Michael Jackson Propofol in medical settings will be allowed to testify at the trial. The singer’s former nurse Cherylin Lee will also testify.
Jury selection is scheduled to begin on September 8, with opening arguments most likely to take place the last week in September.