Olathe ? A Johnson County judge ruled that evidence from new DNA testing wasn’t enough to overturn an Olathe man’s conviction for murdering his wife.

When Kenneth Haddock was convicted of the 1992 bludgeoning death of his wife, a key piece of evidence was a hair found clutched in her hand.

The prosecution said the hair was Haddock’s. Improved DNA testing shows it wasn’t, his attorneys said, and his conviction should be thrown out.

Haddock, 57, is serving a life sentence for the death of Barbara Haddock, whose body was found under a toppled pile of logs in the family’s garage.

Despite the new DNA testing, District Judge James Franklin Davis agreed with prosecutors Wednesday that there was still “overwhelming evidence” to support Haddock’s conviction.

Davis told Haddock’s attorneys that they could file a written request to seek additional DNA testing. Attorney Mark Barrett said that would be done as soon as possible.

Haddock was convicted of first-degree murder and is not eligible for parole until 2009.