Rep. Maxine Waters said today she will formally request U.S. Attorney General William Barr investigate the killing of 18-year-old Andres Guardado by a sheriff's deputy near Gardena as a civil rights violation.    ``Enough is enough,'' Waters said in the announcement, a day after multiple sheriff's department officials declined to answer questions during the Los Angeles County coroner's office inquest into Guardado's death. The officials cited advice from attorneys. ... read more »