(October 10, 2008)—DNA testing has reaffirmed the guilt of a man convicted in a 1993 Dallas capital murder case.

The DNA test results, announced Thursday by the Dallas County District Attorney's Office, were unfavorable to Henry Jay Bell, who was sentenced to life in prison for the sexual assault and murder of a neighborhood acquaintance.

Blood found on the knife used in the stabbing underwent DNA testing; the results conclusively linked Bell to the crime, the district attorney's office said.

The Innocence Project, a New York-based legal center specializing in wrongful convictions, paid for the testing costs.

There have been 20 men in Dallas County since 2001 whose convictions have been overturned based on DNA testing of evidence, although one of those men will be retried by prosecutors.