remains. no official response from moscow. the cause of the deadly train crash. sunday's collision in south carolina killed two people and injured 116. amtrak train diverted on the wrong track causing it to smash into a stationary freight train. cnn's kaylee hartung has the latest. >> reporter: the white pod wetes brought out to to dialo dialogu crash. diverting the train on the side track and squarely into the freight train. ntsb investigators have to figure out why the switch was left locked in the wrong position when the train travel along that path every day. this is a question that the csx