The Glenn County sheriff-coroner released the cause of death for nine of 10 people who died in a fiery Fed-Ex-truck and bus collision on Interstate 5 near Orland April 10.
Based on forensic examination and toxicology test results, forensic pathologist Dr. Thomas Resk found that seven of the victims succumbed from asphyxiation from inhaling products of combustion. Two victims died from multiple trauma from the collision.
The cause of death for the 10th person has not been released.
The dead were five students from Southern California High schools, three adult chaperones, and the drivers of the Setra motor coach and FedEx truck carrier truck. The bus was traveling on northbound I-5 for California State University, Humboldt, for a student recruitment event when the southbound FedEx truck barreled across the median into the northbound lanes, slamming into the bus.
The cause of the crash is still under investigation. The National Transportation Safety Board has said the FedEx truck driver did not apply his brakes during the incident.