A man from Crystal has pleaded guilty to killing his wife in their home last year. Investigators say 57-year-old Dennis Sandland separately called an adult son and daughter to say he shot his wife, 53-year-old Sandra Sandland. Police say after they arrested Sandland, he said numerous times without being asked that he was angry with his wife and shot her. He pleaded guilty to second-degree unintentional murder as part of a negotiated settlement and will be sentenced January 2nd. He’s expected to receive more than 25 years in prison.