Michael Jackson's father has dropped a wrongful death action against the former doctor convicted of causing the singer's death.

The civil attorney for the doctor convicted of the involuntary manslaughter of Michael Jackson says his client is coping with tight jail security and his isolation, and remains optimistic that he will win an upcoming appeal.

Michael Jackson's father filed a wrongful death lawsuit yesterday against the doctor charged with giving the pop superstar a lethal dose of sedatives one year ago, accusing the Nevada doctor of negligence, secrecy and poor training.