>> reporter: 26 people were onboard the bus, jenna. they're all okay. but the video as you said is dramatic. pretty crazy if you think about it. think about it. we have it up on the ipad to show you here. the back end of the bus is completely engulfed in flames. this greyhound bus on its way to l.a. didn't get there for obvious reasons. passengers not knowing what was going on at first. one guy said he smelled smoke. nobody else on the bus seemed worried about it. until people driving in cars passing by the bus on the highway, began to shout out to people on the bus, hey, your bus is on fire that they realized there was in fact a fire. the driver pulled over and these are pictures you see from outside of stock done -- stockton, california. everybody on board the bus got off okay. the bus though, not okay. the whole back end pretty much destroyed. there is an investigation going on, jenna, to find out exactly why this happened. jenna: sound like a good question, rick. thank you. jon: case in point as to why