The latest bid by Kennedy cousin Michael Skakel to get a new trial in his murder case has failed, according to one of his attorneys.

Stamford Superior Court Judge Edward Karazin denied the request, which was based on another person?s claim that two men, not Skakel, committed the 1975 murder of Martha Moxley. The judge ruled that while the claim was admissible, it was not credible.

Karazin had heard a week of testimony in April to consider the proposal.

Skakel is serving 20 years to life in prison after he was convicted in 2002 of fatally beating his 15-year-old neighbor Martha Moxley in Greenwich in 1975 with a golf club.

To win a new trial, Skakel's attorneys had to prove that new evidence not available before his conviction could have changed the verdict.Moxley?s brother told News 12 Connecticut he was not surprised by the ruling. ?You never know what?s going to happen, but sitting through it, I thought it was pretty weak," he says.

Skakel's attorney Hope Seely says she will continue to pursue every available legal avenue.

AP wire reports contributed to this article.

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