Vehicular assault charges have been leveled against a drunk driver who crashed leaving his fiancee and her three children injured in a wreck on Viola Road last August.The suspected drunk driver, Marcus C. Boren, 31, was indicted on charges of vehicular assault, reckless endangerment with a deadly weapon, DUI while accompanied by children, and violation of the child restraint law. Boren entered a not-guilty plea to the charges during his arraignment before Circuit Court Judge Bart Stanley. He remains held in lieu of a $250,000 bond awaiting his trial set for Jan. 17 of next year.Boren and his fiancé, Veronica Gault, 26, were both airlifted to Vanderbilt University Medical Center from the scene of the accident.