Yesterday the L.A. Coroner's office revealed that Whitney Houston had cocaine in her system at the time of her death, even going so far to suggest that she was a 'chronic' cocaine user.

When the cops and paramedics arrived to Whitney's room, there were no signs of cocaine so where did it come from?

Sources connected to the singer are syaying that someone from her entourage actually removed the cocaine from the scene before the authorities arrived.