An Lombard man charged with killing his wife did so because he “went nuts” after she wouldn’t stop yelling and screaming at him, according to a 911 call played at a court hearing Saturday morning.But Charles Witter’s attorney, William Wolf, argued Witter did so because his wife suffered from worsening dementia that made her angry and violent, and her yelling caused him physical and emotional pain. “He loved and still loves her,” Wolf argued.Witter, 81, is charged with first-degree murder. Prosecutors say he shot and killed his wife, Helen, early Friday morning at their home in the 500 block of Clarendon Avenue in Lombard. Helen Witter was 80 years old.Prosecutors asked to have Witter detained pretrial. According to a police body-camera video played in court Saturday morning, Witter told police that he shot Helen because she was screaming and yelling at him, even though he asked her to stop.For more, go to Dailyherald.com.