The Merced County District Attorney’s Office has filed felony and misdemeanor charges against the bus driver who was behind the wheel in a collision that claimed four lives and wounded several more individuals last year near Livingston. Four felony counts of vehicular manslaughter and five misdemeanor vehicle code violations were filed against Mario David Vasquez of Los Angeles on Monday in connection with the early morning bus crash on Aug. 2, 2016 outside Livingston that killed four people and resulted in serious injuries to eight passengers. Vasquez, age 58, was driving a bus owned by Autobuses Coordinados USA, Inc. southbound on Highway 99 just south of Hammatt Avenue around 3:18 a.m. when the bus left the roadway and collided with a sign pole on northbound Highway 99.