Detailed text transcripts for TV channel - KGO - 20140813:09:31:00
And a study about sleep aids says they hardly improve the sleep of workers following the night shift. they say users' alertness was only slightly improved when they were awake. those are some of the top stories on this wednesday, august 13th. >> announcer: from abc news, this is "world news now." good morning to you. great to have you with us. we begin this half hour with new details surrounding the death of robin williams. >> fans, friends and family are still stunned this morning as we find out more about how the hollywood legend ended his own life. abc's cecelia vega is in san francisco. ...