For the community, some emotional questions may never get answered.
The NTSB only gets involved in vehicle accidents that meet one of three criteria. They say this one meets all three.
The children were killed when their car was crushed between a truck and a stopped school bus.
David Rayburn with NTSB says, "We're extremely interested in any kind of accident that involves a school bus. We've been involved in school bus transportation safety for several decades. It's a serious accident. The number of fatalities, that's a second reason. And a third reason, because it involves a commercial trucking company."
There is a long road ahead for this tight-knit community.