By David Shepardson WASHINGTON (Reuters) – U.S. auto safety regulators have opened a special investigation into a fatal pedestrian crash in California involving a 2018 Tesla Model 3 where an advanced driver assistance system is suspected of use. The National Highway Traffic Safety Administration (NHTSA) cited the California incident in an emailed update on Thursday but did not identify the specific crash. The San Diego Union-Tribune reported on June 7 that a Tesla went airborne and struck and killed a woman. NBC-7 in San Diego said a 39-year-old man was charged with vehicular manslaughter and …