The accused pleaded guilty to manslaughter, interfering with a dead body, and possession of child pornography.
The manslaughter and interference charges stemmed from a 1978 cold case where the accused shot an intruder in his home and, with his father's help, disposed of the body.
The accused confessed to the police in 2012.
The court weighed the aggravating factors, including the use of a firearm and the 34-year concealment, against mitigating factors such as the accused's confession and guilty plea.
The court imposed a global sentence of 8.5 years, reduced to 27 months after crediting pre-sentence custody.
