Virginia Gov. Mark Warner ordered the DNA tests in one of his last acts as governor. He announced the results Thursday, the Richmond (Va.) Times-Dispatch reported.
"The confirmation that Roger Coleman's DNA was present reaffirms the verdict and the sanction," Warner said in a release. "Again, my prayers are with the family of Wanda McCoy at this time."
McCoy was raped and killed on March 10, 1981. Coleman, McCoy's brother-in-law, was tried and sentenced to death in 1982.
He claimed his innocence even as he was put into the state's electric chair and executed on May 20, 1992.
Warner, who leaves office Saturday, said he ordered the DNA testing to put to rest doubts in the case.