"I have no choice now but..." said Sharon Murphy while slamming Brittany Murphy's father, Angelo Bertolotti

Renowned for her stellar act in 'Clueless,' and 'Sin City,' Brittany Murphy had all the best things going on for her until she passed away in 2009 at just 32. The cause of death was later attributed to untreated pneumonia, anemia, and drug intoxication from prescription and over-the-counter medications, though no illegal substances were found in her system, as reported by People.

However, Brittany's father, Angelo Bertolotti, disputed the claim and even claimed that he sent the late actress' hair, blood, and tissue samples to an independent lab, as per USA Today. He even asserted that the results revealed "heavy metals/toxic elements" commonly found in rat poison, pesticides, and insecticides, suggesting they may have been introduced by a third party with criminal intent. However, Britanny's mother, Sharon Murphy, refuted all the claims in an open letter to The Hollywood Reporter.

Fifteen years after Brittany's death, her mother, Sharon Murphy, broke her silence with a powerful open letter in 2013. In the letter, Sharon addressed allegations made by Brittany's estranged father, Bertolotti, who claimed that she had been poisoned, as per Inquistir. Sharon wrote, "I have no choice now but to come forward in the face of inexcusable efforts to smear my daughter’s memory by a man who may be her biological father but was never a real father to her in her lifetime."