PEORIA, Ill. (AP) — A 29-year-old central Illinois man accused of beating his grandmother to death with a hammer has been found not guilty by reason of insanity in the April 2022 slaying. Cody A. Krause was charged with first-degree murder in the death of Glenda Rusterholz. Investigators said her skull and face were crushed when she was beaten with a hammer in her Peoria home. The Peoria County state’s attorney’s office said in a news release that following a stipulated bench trial, the judge found Krause not guilty by reason of insanity last week. At the judge’s direction, Krause, who was diagnosed with schizoaffective disorder, bipolar type, is being treated in the custody of the state.