There have been more than 140 people exonerated from death rows across the United States. What impact would the use of DNA analysis have upon capital cases in the future? Would people across the United States change their opinion about capital punishment because of this? There have been more than 140 people exonerated from death rows across the United States. What impact would the use of DNA analysis have upon capital cases in the future? Would people across the United States change their opinion about capital punishment because of this?