Devin Peterson receives 6 year sentence for tampering with evidence in murder of David Grunwald

 Devin Peterson (right) during arraignment following the murder of David Grunwald in late 2016.
Devin Peterson (right) during arraignment following the murder of David Grunwald in late 2016. (KTUU)
Published: Aug. 20, 2018 at 12:25 PM AKDT
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A judge in Palmer accepted the plea deal Monday, sentencing Devin Peterson to six years in jail for the role he played in the murder of 16-year-old David Grunwald.

That role, according to prosecutors, amounted to three Class C felonies of tampering with evidence and hindering prosecution in Grunwald's murder investigation, relating to the fact that he hid the guns used in the killing, and helped torch the victim's Ford Bronco.

that Peterson pleaded guilty to those charges as part of a deal between his defense team and state and federal prosecutors.

Likewise, that deal, detailed in a sentencing memorandum months ago, showed that both legal teams in the state case had agreed on the six year sentence. On Monday, judge Kari Kristiansen handed down that sentence to Peterson.

The only snag the deal could have seen was that the offenses in the state case, all Class C felonies, were unusually high. The prosecution argued this was necessary as the evidence which was tampered with was murder evidence.

Roman Kalytiak, District Attorney in Palmer, said the judge believed the sentencing was justified due to the nature of the case, and that Peterson's defense attorney agreed to it during the making of the plea deal.

Now, Peterson will add six years on to the three years he was already sentenced to in connection with the same deal, relating to federal charges of giving drugs to minors.

He was sentenced to that in federal court in May, the same time the sentencing memorandum was reached, which stated he would be jailed for up to nine years. The Department of Corrections will ultimately decide if he spends all that time in jail, however.

Kalytiak said Peterson will be subject to normal parole procedures, and could see much less jail time if he is granted parole after serving the first quarter of his sentence.