he knows from experience even with its lights on the van is an accident waiting to happen. >> when i got up a little closer beside the mustang that hit the van, i could see there was a man and woman in there, and they just looked completely disoriented. >> these two people are sitting in the mustang. a male and female. multiple injuries. i need chp asap. we have multiple people down. >> andereg waves his camera light to slow down oncoming traffic, but drivers blinded by construction lights swerving out of control can't react in time. another car accordions into the van. the couple is rear ended. as the situation spins out of control. >> another five vehicles involved. another five vehicles involved. >> as each second passes, the pileup gets more dangerous. >> it's nerve-wracking when you keep hearing screeching tires, screeching tires, screeching tires. you don't know which one is