An Ohio man was charged with involuntary manslaughter after police say he caused a crash that killed a high school student and her grandmother on Christmas night.
Annie Vu, a student at Annandale High School, and her grandmother, Su Nguyen, died. They were 15 and 75.
Until Thursday, driver Devin Juliana, 48, of Steubenville, Ohio, only had been charged with a traffic violation: reckless driving. That stunned the grieving Vu family…