. >> reporter: witnesses vamballed to rescue trapped survivors and helped emergency crews get them to> sthf them couldn't move. they had back or neck injuries. snf them had broken legs or ankles. and most of them had head trauma. >> reporter: a dramatic dangerous scene as a routine morning commute turned deadly within seconds. these train cars will likely be removed tomorrow and go on to a warehouse where they will be analyzed by the ntsb and used as evidences ato what went wrong here. i'm jennifer bjork lupd live in du pont, washington. jim, doreen. >> a lot more to learn. jennifer, thank you so much. >>> only on news 4, tonight a mother says she's still shaken after school staff sent her 3-year-old daughter home with the wrong person. it happened at cleveland elementary school in the shaw neighborhood on friday. a man returned the school to the girl safe and unharmed about an hour later. he originally had come to pick up his 3-year-olds niece, who has a similar name and didn't know he had picked up the wrong child because the girl responded to his niece's name. the girl's mother say