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Dionne Warwick on What She Thinks Killed Whitney

Description:Dionne Warwick is opening up to ET about the death of her cousin Whitney Houston and reveals what she thinks killed the pop superstar. When asked what she expects to hear when authorities issue a final cause of death for Houston following the results of toxicology tests, Warwick tells ET's Christina McLarty, "You know, in all honesty, I think she had a heart attack, that's what I think happened to her." When asked whether she believed drugs played a role in the death. (8:13)

Source: ETonline

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