Eric DeWayne Boyd (Photo Courtesy: Blount County Sheriff's Office)

CINCINNATI, Ohio (WVLT) -- A Federal Appeals Court in Cincinnati has upheld the conviction of Eric Boyd for his role in the murders of Channon Christian and Christopher Newsom.

In 2008, Boyd was sentenced to 18-years for hiding Lemarcus Davidson, who was on the run, following the fatal carjacking. Davidson and three others were convicted of 2007 slaying. Davidson is on death row for his role, while two others are serving life sentences.

On Thursday, the 6th Circuit U.S. Court of Appeals affirmed both his conviction and appeal.