A car carrying four children hit an over turned truck on Interstate 5. All four of the children were killed in the accident. The victims included Cynthia J. Hernandez, 9, Edgar A. Hernandez, 8, and Xochitl M. Hernandez, 5,of Whittier California and Luis Villegas, 12, of Oakland.The over turned truck was driven by John Blackburn, 54, of Frazier Park who died in the accident. The accident occurred on Interstate 5 at the Balboa exit.