LAKE CHARLES, La. (AP) — A Lake Charles teenager accused of killing his aunt has changed his plea to not guilty by reason of insanity.

The American Press reports (http://bit.ly/cseYHv ) the 17-year-old, who is charged with second-degree murder, pleaded not guilty in November.

The teen changed his plea Tuesday in state District Judge David Ritchie's court. A pretrial conference has been set for Oct. 4. The teen is accused of fatally shooting 40-year-old Susan Doise, an aunt with whom he lived, in September.

Her body was found in the bathroom of her home. Police say her 4-year-old child was reportedly found hiding under the covers in a nearby bedroom.

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