The late son of reality TV star Anna Nicole Smith was killed by a combination of methadone and the antidepressants Zoloft and Lexapro - a cocktail that would have turned lethal after about five hours - a pathologist testified Monday.

The conclusion by Dr. Govinda Raju, who performed the official autopsy on Daniel Smith, confirms the findings of a private doctor who examined the 20-year-old’s body after he died Sept. 10, 2006 in the Bahamas.

On the third day of an inquest ...