Jackson 'dead' before 911 call
Michael Jackson's doctor has been accused of removing evidence from the scene before calling for help.
The prosecution also claim it was more than 20 minutes before he called an ambulance.
Appearing at a pre-trial hearing in Los Angeles, Dr Conrad Murray denies involuntary manslaughter. The hearing will determine whether there should be a full trial.
Los Angeles Deputy District Attorney David Walgren said evidence would show that Dr Conrad Murray also tried to cover up the fact that he administered the powerful anaesthetic propofol to the pop superstar.
Mr Walgren said more than 20 minutes passed between the time Dr Murray discovered the 50-year-old pop star in his bed not breathing and when a member of Jackson's security team called paramedics.
Jackson's mother Katherine and his sisters LaToya and Jackie attended the proceedings in Los Angeles.
If convicted of involuntary manslaughter, Dr Murray could face four years in prison and the loss of his medical licence.
The doctor denies the charge.