California Highway Patrol officer Joe Stokes clears away crime scene tape at the scene of a deadly crash on April 11, 2014 in Orland, California. Ten people were killed and dozens injured, including four still in critical condition, after a FedEx truck collided with a bus of high school students on Interstate 5 yesterday. The students were on their way to visit Humboldt State University in Northern California. (Photo by Elijah Nouvelage/Getty Images)
Bus Crash Kills 10 In Northern California
Amanda Martinez and her dog Taffy watch workers clear the scene of Thursday's deadly crash on April 11, 2014 in Orland, California. Ten people were killed and dozens injured, including four still in critical condition, after a FedEx truck collided with a bus of high school students on Interstate 5 yesterday. The students were on their way to visit Humboldt State University in Northern California. (Photo by Elijah Nouvelage/Getty Images)
Bus Crash Kills 10 In Northern California
A bus involved in Thursday's deadly crash is loaded on to a truck at the scene on April 11, 2014 in Orland, California. Ten people were killed and dozens injured, including four still in critical condition, after a FedEx truck collided with a bus of high school students on Interstate 5 yesterday. The students were on their way to visit Humboldt State University in Northern California. (Photo by Elijah Nouvelage/Getty Images)
Bus Crash Kills 10 In Northern California
The remains of a FedEx truck involved in Thursday's deadly crash is seen on a truck at the scene of the accident on April 11, 2014 in Orland, California. Ten people were killed and dozens injured, including four still in critical condition, after a FedEx truck collided with a bus of high school students on Interstate 5 yesterday. The students were on their way to visit Humboldt State University in Northern California. (Photo by Elijah Nouvelage/Getty Images)
Bus Crash Kills 10 In Northern California
The remains of a FedEx truck, right, and bus, left, involved in Thursday's deadly crash are seen on trucks at the scene of the accident on April 11, 2014 in Orland, California. Ten people were killed and dozens injured, including four still in critical condition, after a FedEx truck collided with a bus of high school students on Interstate 5 yesterday. The students were on their way to visit Humboldt State University in Northern California. (Photo by Elijah Nouvelage/Getty Images)
Bus Crash Kills 10 In Northern California
California Highway Patrol officer Joe Stokes, left, clears away crime scene tape at the scene of a deadly crash on April 11, 2014 in Orland, California. Ten people were killed and dozens injured, including four still in critical condition, after a FedEx truck collided with a bus of high school students on Interstate 5 yesterday. The students were on their way to visit Humboldt State University in Northern California. (Photo by Elijah Nouvelage/Getty Images)