The jury must unanimously agree on one of two theories in order to convict Murray on the single count of involuntary manslaughter . Jurors have two theories of guilt to account for defendant Conrad Murray . Prosecutors say Murray 's use of propofol for Jackson 's death was criminally negligent . The defense says Murray gave himself the fatal overdose .
Jurors have two theories of guilt to account for defendant Conrad Murray . Prosecutors say Murray 's use of propofol for Jackson 's death was criminally negligent . The defense says Murray gave himself the fatal overdose .