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Dr. Conrad Murray's involuntary manslaughter trial took a shocking turn on Wednesday morning as the defense announced it was abandoning one of its main points -- that Michael Jackson had accidentally killed himself by swallowing Propofol.

Testimony from two of the prosecution's witnesses, Dr. Alon Steinberg, a cardiologist, and Dr. Christopher Rogers, the doctor who declared Jackson's death a homicide, put big holes in that theory.

The defense could still argue that Jackson injected the drug, but Rogers testified that he thinks that is unlikely. Find out why below.

  • The defense has argued that Murray was not negligent because he only left MJ alone for "two minutes to use the bathroom" after administering Propofol.


  • Rogers pointed out that, if that is true, that would not have been enough time for MJ to self-administer Propofol, which the defense has argued is what killed Jackson.


  • He also pointed out that Jackson would have had to wake up from his Propofol-induced sleep (Conrad said Jackson was sleeping when he left the room), and then given himself the drug.


  • Jackson's death was the result of an overdose of Propofol. Rogers said what is more likely is that Murray gave Jackson several doses of Propofol over a few hours without monitoring the doses.



In addition, the prosecution is gaining ground on their argument that Murray was grossly negligent -- see what Dr. Steinberg testified after the jump.