His father, Joe Jackson, is claiming that the pop star's heart beat briefly at the hospital.
His attorney says Michael may have lived had paramedics and doctors gotten to him sooner.
It's not clear where the information came from. The King of Pop's personal doctor, Conrad Murray, has been charged with involuntary manslaughter for giving Jackson a powerful anesthetic to help him sleep.
Jackson's bodyguard claims Murray wasted time by stopping CPR in order to hide the drug.