TEHRAN, Young Journalists Club (YJC) - The Shepherd family - parents Jon and Sara, son Kai and daughter Kressa - called family members around 1am Monday morning, saying they were fleeing their homes.
The family split up into two cars, which caught fire as they were traveling the one-mile down their driveway.
They then tried to escape on foot, but became caught up in the flames.
Neighbor Paul Hanssen found Kai dead, near his badly burned mother, 40, and sister, 17.
'He (Hanssen) stayed with the girls, kept them comfortable, and gave them water,' Sara's sister Mindi Ramos told KTVU. 'They were lucid. He called 9-1-1 and got the firefighters there.'
Jon Shepherd, 45, had gotten further down the road, where he was rescued by firefighters and rushed to a burn unit in San Francisco.
Family members didn't know what happened to him until they started calling area hospitals.
All three family members are heavily sedated so it's unclear if they even know that Kai is dead. Kressa and Sara are being treated at neighboring hospitals in Sacramento.
Jon Shepeherd reportedly suffered a minor heart attack, but is now in stable condition. He, along with his wife, have already undergone skin graft surgeries.