Six weeks after getting his driver’s license, Christopher Tiegreen—a friendly, outgoing 16-year-old who played soccer and sang in his high school chorus—was in a car collision near his home in Gainesville, Ga. Tiegreen’s Isuzu Trooper flipped several times, causing severe head injuries. He was taken by helicopter 50 miles to…
Nov 1, 2012 10:20 AM CDT