The jury awarded $33 million in economic and non-economic damages on Tuesday to the twin girls whose parents were killed in a high-speed crash on El Camino Real in Redwood City nearly four years ago. Jurors also found Morales’ parents, Arnold Morales and Susana Salto Alvarez, liable for negligent supervision, concluding they allowed their teenage son to drive despite warning signs surrounding his driving history. The family of the twin girls orphaned after their parents were killed in a car crash in Redwood City last year is taking legal action. The San Mateo County Coroner’s Office determined Harrison died from the toxic effects of methadone, amitriptyline and gabapentin and ruled his death accidental. A teen driver may face two vehicular manslaughter charges following a deadly crash in Redwood City that left two young girls without parents, the San Mateo County district attorney said Friday.