Kennedy cousin Michael Skakel is once again appealing his conviction for killing his Greenwich neighbor when they were teens.
Skakel was convicted in 2002 of killing 15-year-old Martha Moxley in their Greenwich neighborhood back in 1975. He's serving 20 years to life in prison.
His new appeal alleges his lawyers were never given two crucial pieces of evidence -- a report received by Greenwich police that implicates another suspect and statements by a lawyer who said a key witness for the state had a history of lying.
Fairfield County State's Attorney Jonathan Benedict, who prosecuted Skakel, declined to comment on the new court filing Friday. He said he hadn't seen the motion and will respond to the claims later on in court.
The state Supreme Court upheld Skakel's conviction in January 2006, rejecting defense arguments including claims that Skakel was charged long after the statute of limitations in effect in 1975 expired, and that his case should have been tried in Juvenile Court. Skakel, a nephew of Ethel Kennedy, was also 15 at the time of Moxley's killing.
The U.S. Supreme Court declined to review the case in November 2006, but Skakel has several other appeal claims pending in state and federal courts.
Two other men have been implicated in Moxley's killing, but a state judge rejected that allegation last year when he turned down Skakel's request for a new trial.