A Napa man is facing two years behind bars for a crash that killed a Petaluma couple back in 2015. A judge sentenced 32-year-old Christopher Shuman Monday for the collision that killed 78-year-old Richard Steinhart and 72-year-old Raye Steinhart on Highway 121 near Schellville south of Sonoma. Court records say Shuman had methamphetamine in his system and was speeding when he crashed into their vehicle. Shuman was convicted of vehicular manslaughter for the crash on January 30th. He pleaded no contest to driving with a suspended license.