Shocking video shows a meth-addled Florida driver’s stunned reaction as she is charged with a horrific hit-and-run that left an 8-year-old boy dead and a 10-year-old severely injured while they were crossing the road. Victoria Johnson, 30, went through open-mouthed disbelief, derisive laughter, angry outbursts, and finally tears, all in the space of under two minutes, during her  first court appearance  via video conference Friday. The Winter Haven, Fl. woman faces five charges related to a hit-