 Smith died in his mother's hospital room while visiting her at the maternity ward in Doctors Hospital in Nassau, Bahamas, on September 10, 2006, just three days after she had given birth to his half-sister, Dannielynn Hope Marshall Stern.Cyril Wecht, an American forensic pathologist, stated Daniel Smith accidentally overdosed on methadone, Zoloft and Lexapro.Larry Birkhead testifying at an inquest stated that security in the house indicated that Daniel had stolen his mother's methadone; used drugs with his mother and lost about twenty pounds before his death.