. >> and just minutes ago, i talked to pleasanton police. they say forensic investigators are still working at this hour to try to determine what caused this crash. was it a case of speed or did something else happen that led to the loss of a family of four, a mother, a father, their two children? this incident is causing a withering pain here in this community. and for the school district, which, as julie said, has seen this type of loss of life before. hours after impact, charred earth and firefighting foam tell part of the grisly tale on foothill road in pleasanton wednesday night, an electric vehicle carrying four people crashed into a tree and caught fire. pleasanton police investigators say all four occupants, two adults and two children, were killed. >> we're aware that any any loss of life, especially when it involves an entire family, has an impact on students and staff and parents and guardians, patrick gannon of the pleasanton unified school district wouldn't say which schools the two children attended, but did say the entire scho