>> reporter: larry, sarah luca told us she and her kids are scheduled to come back here to walnut creek next month. she told us by telephone today, had the truck driver been going a little faster, they might not have been coming back at all. >> these are the images. a young family from walnut creek enjoying the fireworks in nice seconds before a truck barreled through the crowd, hitting as many people as possible. >> people are running. [ inaudible ]. >> reporter: among those running for their lives in this horrific attack in nice, a walnut creek mother and her two young children. sarah luca and her 8-year-old son tiger and 6-year-old who were with thousands of others, many of families with children on the promenade. she spoke with us by telephone from nice. >> i didn't realize what was going on but then i saw people running and i started hearing screams and little kids screaming for moms an the moms screaming for children. >> reporter: luca told us she grabbed her two kids and began running. she couldn't see his face but got the clear impression the driver of the truck was trying to hi

>> reporter: larry, sarah luca told us she and her kids are scheduled to come back here to walnut creek next month. she told us by telephone today, had the truck driver been going a little faster, they might not have been coming back at all. >> these are the images. a young family from walnut creek enjoying the fireworks in nice seconds before a truck barreled through the crowd, hitting as many people as possible. >> people are running. [ inaudible ]. >> reporter: among those running for their lives in this horrific attack in nice, a walnut creek mother and her two young children. sarah luca and her 8-year-old son tiger and 6-year-old who were with thousands of others, many of families with children on the promenade. she spoke with us by telephone from nice. >> i didn't realize what was going on but then i saw people running and i started hearing screams and little kids screaming for moms an the moms screaming for children. >> reporter: luca told us she grabbed her two kids and began running. she couldn't see his face but got the clear impression the driver of the truck was trying to hi

sarah luca and her 8-year-old son tiger and 6-year-old were with thousands of others, many of them with families with children on the promenade. thsis i sarah's video of the bastille day fireworks seconds before the attack. just as the fireworks were ending, the truck came barreling toward them. they spoke with us by telephone from nice. >> i saw this truck coming. at first i didn't realize what was going on and then all of a sudden i saw people running and i started hearing screaming, moms screaming for children. >> she told us she grabbed her two kids and began running. she couldn't see his face but got theism appreciation the driver of the truck was trying to hit as many people as possible. >> how could you run over the people and they scream and at the same time he was shooting at people. >> reporter: tiger and her daughter went to the school in oakland and the trip was to help them learn about the country and the people. after surviving this -- >> it is like winning the lottery for their life. >> reporter: they were supposed to stay in france until the end of next week but are now