San Francisco Bay area transit riders are bracing for a long delay tomorrow morning. It will the fourth day of of strike. The deaths this weekend are raising questions as to whether the strike had anything tooted with the fatalities. The story now from lisa bernard. Reporter the train involved in the accident rolled out of here, and ntsb investigators are trying to figure out what caused it to plow into two workers checking the tracks on saturday killing both of them. The train was running in automatic mode with a driver plus five others on board, and b. A. R. T. Says there was an experienced operator at the controls. The mtsb will look at the employees involved and investigators will scrutinize the equipment. We do a thorough nchgs of the equipment, thorough mechanical inspection of every operation on the train itself inside and out, wheels, brakes, the third rail, all those things. Investigators spent about four hours sunday on the tracks between two suburban train spots and lickly s