Update:  The 18-year-old woman left in critical condition after the car she was riding in was rear-ended by a hit-and-run driver near John Wayne Airport has died of her injuries. 

Robert Charles Serrano, the man arrested in connection with the accident, has now been charged with gross vehicular manslaughter while intoxicated and felony fleeing of an accident scene.  He remains in-custody in Orange County Jail on $250,000 bail.  Reports indicate Serrano has been convicted of one prior DUI as well as several traffic violations.