In 1996, Reginald Dwayne Betts — a 16-year-old honor student with braces — used a pistol to carjack a man who had been sleeping in his vehicle. Shortly thereafter, he was caught, sentenced as an adult and sent to an adult prison, where he served more than eight years, including one year in solitary at a supermax facility. "I was 5 feet, 5 inches and 120 pounds. I went to prison with grown men, and I went into what people readily acknowledge as a treacherous and a wild place," Betts tells Fresh Air's Terry Gross. "My judge, when he sentenced...