BISMARCK, N.D. (AP) — The North Dakota Supreme Court has turned down an appeal by a Mandan man who claims undisclosed DNA evidence would clear him of manslaughter.

Rodney Friesz, 56, was convicted of manslaughter and arson in 2016, but acquitted of murder in the death of Eugene Jassmann. Friesz claimed he shot the 62-year-old victim in self-defense.

Friesz shot Jassmann in 2014 and set fire to his brother’s mobile home to conceal evidence, prosecutors said.

In May 2020, Friesz appealed his conviction citing insufficient evidence, ineffective counsel, failure of the court to suppress certain evidence, and the prosecution’s failure to disclose DNA evidence.

The justices in affirming a lower court decision said Friesz “failed to meet his minimal burden to provide at least some competent evidence to support his claims,” the Bismarck Tribune reported.