AMELIA COUNTY, Va. (WRIC) -- An 18-year-old was saved by responders in Amelia County after going into cardiac arrest in January. The Amelia County Sheriff's Office posted to Facebook on Thursday, detailing the life-or-death ordeal that took place on Jan. 9, and attributed the positive outcome to multiple teams working together to save the young man. "Thanks to the rapid response and seamless teamwork between deputies, volunteer firefighters, EMS…