A tour bus , big rig , two vehicles are all involved in a crash on I-10 , California Highway Patrol says . Score: 6 A rig jackknifes and sends its load of metal pipes spilling onto freeway , station says .
A tour bus , big rig , two vehicles are all involved in a crash on I-10 , California Highway Patrol says . All four fatalities were on the tour bus carrying 25 people , TV station reports . A rig jackknifes and sends its load of metal pipes spilling onto freeway , station says .