On January 18, 2011, Kevin Benefield was convicted of the rape and murder of Barbara Pelkey in Wallingford, Conn. Benefield was deemed guilty on the basis of DNA evidence, which exonerated Kenneth Ireland, the man initially convicted of the crimes. Ireland's newfound freedom was bittersweet. It arrived only after he had spent more than 20 years in prison, having been arrested at age 18 and convicted wrongfully in 1989.