SAWYER COUNTY, Wis. (WTAQ) - A 16-year-old boy will spend 25 years in prison for his role in the violent murder of a 93-year-old woman during a burglary in northwest Wisconsin.

Austin Davis of Ojibwa was sentenced Tuesday in Sawyer County. He must also spend 15 years under extended supervision once he leaves prison.

Davis pleaded guilty to second-degree intentional homicide in the slaying of Irena Roszak in the Sawyer County town of Radisson in May of 2009.

Davis served as a lookout. Authorities said he was told to steal anything valuable, while 28-year-old Christopher Roalson repeatedly stabbed Roszak with 2 knives and hit her with a chair while she begged for her life.

Officials said Roalson yelled satanic references at the time. He’s scheduled to go on trial February 7th. Prosecutors said Davis met Roalson – and the next day, they were smoking marijuana when Roalson brought up the idea of killing somebody.

They apparently planned to kill a couple that Roalson had argued with. But officials said a motion light at the couple’s home scared them away – so they ended up at Roszak’s house nearby. They were arrested a few days after the murder.