Though she knew Michael Jackson had a drug problem, Janet says she had no clue her brother was using Propofol -- the drug that ultimately killed him.
In an interview with Robin Roberts, MJ's sister says it was "a shocker" when she found out about the dangerous drug he used to go to sleep -- and no one in family knew the extent to which he was using.
I Had No Idea
MJ Used Propofol
11/19/2009 2:28 AM PST BY TMZ STAFF
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