Yvette Dobbie, the sister of Madonna's ex-manager Caresse Henry -- who committed suicide last year -- is speaking out about her sister's death in an exclusive video interview with RadarOnline.com.
Among her shocking revelations: Yvette says Madonna never publicly acknowledged her sister's years of loyal service after her death and she says the Vogue singer's attorneys sent her (Yvette) a letter five weeks after her sister's suicide advising her not to speak or cooperate with reporters or authors of any potential books.
Yvette says while Madonna did send flowers to Henry's funeral, she did not bother to issue a public statement praising Henry's years of service to the Material Girl. (Yvette says Madonna fired her sister with a one paragraph fax after 13-years).
Yvette firmly believes that Madonna's involvement with Kabbalah, a form of Jewish mysticism, changed the singer and drove a deep wedge between the two women which plunged her sister into a deep and dark depression.
Caresse, a mother-of-two, committed suicide by shooting herself in an Irvine, California apartment on March 31, 2010, at age 44.
Yvette revealed: "It was a shock to my sister. She received a fax from London from Madonna. It was a paragraph that said basically your services are no longer needed. This took my sister by surprise and she felt very betrayed by it having been so loyal for 13 years.
"My sister was very troubled by the Kabbalah involvement the all intrusive into personal lives and she tried to keep them separate."
In our exclusive video interview with RadarOnline.com, Yvette lifts the lid on how Madonna became obsessed with the mysterious religion and even forbade her friend and manager from dating one of her bodyguards because Kabbalah insiders did not approve of the relationship.
Watch our exclusive video interview with Yvette here.
The explosive interview will, no doubt, come as a shock to Madonna, who has not spoken publicly about Henry's death.
Moreover, the singer did not return our request for comment.
Yvette added: "All we got was a bouquet of flowers from Madonna. Liz Rosenberg, her publicist, could not even provide a simple statement on her behalf about my sister.
"If they would have had their way then they would have wanted Madonna's name scattered throughout Caresse's Eulogy but I made sure it was not mentioned once.
"My sister was an amazing woman and she deserved to be paid the respect that she deserved, but sadly that never happened and that is all we ever wanted for her."
Henry, a Los Angeles native, managed Madonna for 10 years until the early 1990s. Rosenberg says Henry also managed Ricky Martin, Abdul, Andrew Dice Clay and others.
Besides her sister, Henry is survived by her two children, a brother and her parents.
Caresse Henry was hired as Madonna’s personal assistant in July 29, 1992, before becoming her manager in 1996 - she was terminated via fax in November 2004. The dissolution of their agreement was formalized by May 2005.