Meds Killed Daniel Smith!

The death of Anna Nicole Smith's 20-year-old son Daniel was caused by a lethal combination of methadone, Zoloft and Lexapro, pathologist Cyril Wecht has revealed to PEOPLE exclusively. Wecht said the drugs caused the cardiac dysrhythmia that led to Daniel's death. Wecht got the toxicology results from National Medical Services in Willow Grove, Pa., today. Daniel Smith died in his mother's hospital room Sept. 10 while visiting her in the Bahamas three days after she gave birth to a baby girl named Dannielynn Hope. Smith's longtime lawyer, Howard K. Stern, revealed Tuesday that he is the father of the little girl.

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