IN DECEMBER 2005 Antonio “Toño” Zúñiga, a young man who worked as a street vendor in Mexico City, was abducted by police and accused of a murder he didn’t commit. He was held without charge, and there was no physical evidence connecting him to the crime. He had no link to the victim, and no motive. Witnesses could testify he was working at the market and provide an airtight alibi for the time