Study Shows 2,000 Exonerations in 23 Years

More than 2,000 people have been exonerated of serious crimes since 1989 in the United States, eight of them in Tennessee, according to a report by college researchers who have established the first national registry of exonerations. Researchers say that the leading causes of wrongful convictions are perjury, faulty witness identification and misconduct by prosecutors. The registry itself, which looks deeply into 873 specific cases of wrongful conviction, examined cases based on court documents as well as from groups that have long documented wrongful convictions. That group of wrongfully convicted spent more than 10,000 total years in prison, according to the report, with an average of 11 years each. CNN has more