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Guilty plea in Mason City double-murder

Grandson admits to stabbing his grandparents to death.

Posted: Jun. 5, 2018 3:32 PM
Updated: Jun. 5, 2018 6:22 PM

MASON CITY, Iowa – A North Iowa man is now pleading guilty to killing his grandparents.

Codie Matz, 25 of Mason City, is charged with two counts of 1st degree murder for the deaths of Kenneth Hackbart, 61, and Kathleen Hackbart, 62. Their bodies were found stabbed to death at their Mason City home on November 7, 2017.

At a court hearing Tuesday, Matz officially changed his plea from “not guilty” to “guilty,” saying he wants to take accountability for what he did.

In court he admitted to stabbing Kenneth and Kathleen Hackbart to death.

Matz's attorney's explained they did have an expert wittness for an insanity defense which would evaluate Matz's for mental illness to see if he understands his actions as well as if he is capable of understanding right from wrong. Matz declined the evaluation.

"Moral stand point," he said in court.  "I did have mental issues but I shouldn't have been that violent. I should have had some recognition to not take things the way I did so I just want to admit my guilt."

Matz is now scheduled to be sentenced on July 23 for the two murders. First degree muder holds a life sentence. Judge Gregg Rosenblandt explained Matz will likely be sentenced to serve both sentences concurrently.

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