Cissy Houston to release Whitney memoir
CNN -- Whitney Houston's mother documents her famous daughters fight with drug addiction in her new memoir "Remembering Whitney."
In the book, Cissy Houston questions whether she could have saved her child.
Nearly a year ago, Whitney was found drowned in a hotel bathtub with traces of cocaine in her system.
Cissy is expected to sit down with Oprah Winfrey next week, for her first in-depth interview since Whitney's death.