 Dr. Cyril Wecht was hired by Callenders and Co., a Bahamian law firm, to do an independent autopsy.Wecht stated Daniel Smith died as a result of the interaction of methadone, an analgesic, and the antidepressants Zoloft and Lexapro.The metabolism and the breakdown of the methadone is delayed in the presence of Zoloft, according to Wecht.