In this July 7, 2009 file photo, Janet Jackson comforts her niece Paris Jackson as LaToya Jackson, left, looks on at the memorial service for Michael Jackson at the Staples Center in Los Angeles.
Janet: Michael in denial over drug use
Janet Jackson says she recognized her brother Michael's drug problem, and tried to help him, but that he rebuffed those attempts to intervene.
Janet blames doctor for Michael's death
Jackson portrait sells for $812K
Jackson's mom approves will executors
