Hmm...interesting.
CALLER: Did you see what happened doctor?
DOCTOR: Yes (inaudible) but they need to come.
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BUT WAIT, if Dr. Murray saw what happened, why did he say he came in and saw MJ like that? Or is he talking about how he administered the propofol? IDK FOR SURE, BUT THEN AGAIN...WHO DOES?
"But they need to come." This could easily be explained as them putting the hoax in motion (the paramedics needed to come to get the "body" and take it to the hospital).