Video obtained by NorCal Bodycam and shared with ABC7 Eyewitness News appears to show a San Francisco Muni operator asleep before a July 31 crash involving two empty trains, shattering window glass. SFMTA says the incident is "unacceptable," but it was the second time in a year a Muni driver has been caught on video falling asleep. For more information, click the link in our bio @abc7newsbayarea