Whitney Houston's mother Cissy was shocked that her daughter was using cocaine at the time of her death but believes the relapse was triggered by anxiety over Whitney's comeback plans.
Sources very close to Cissy who have spoken with her in the last few minutes reveal that she believed her daughter was completely sober while shooting the movie "Sparkle."
But Cissy states as Whitney got closer and closer to the Grammys , where Whitney would make her comeback move , she fell prey to the substance abuse.
Cissy is claiming hearing that Whitney was using again drugs is like reliving her death . It's that unbearable...
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