Pathologist Says Meds Killed Smith's Son LOS ANGELES (Sept. 27) - Actress and model Anna Nicole Smith's son, Daniel Smith, died of a lethal combination of drugs that caused an irregular heart beat, People Magazine reported on its Web site on Wednesday. The report quoted pathologist Cyril Wecht, who was hired by Smith to look into her son's September 10 death, as saying Daniel Smith died from a combination of methadone, Zoloft and Lexapro that led to cardiac dysrhythmia. People Magazine said Wecht got the results of toxicology tests from National Medical Services in Willow Grove, Pennsylvania. Daniel Smith, 20,...