purchase by james, sources say. and authorities have tracked the purchase of a gas mask to james through an ebay account. we are now learning more about the victims. i was sitting right next to the shooter. reporter: he was shot in the back of his knee, trying to flee the scene. this lady was pregnant, yelling help. everybody was pushing. i m thinking a smoke bomb. i grabbed her from the back so she don t get shot in the back. she was pregnant. a lot of people kept rushing. that s when i got shot in the leg. reporter: police say james shot a total of 33 rounds in the crowded car before his gun jammed. five of the injured were children on the way to school. reporter: and jake, in another bizarre twist, we re now learning from law enforcement officials that frank james called in on himself. officials telling us, that crime stop tip they received that