Teenager pleads guilty to Mazomanie killings - WKOW 27: Madison, WI Breaking News, Weather and Sports

Teenager pleads guilty to Mazomanie killings

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MADISON (WKOW) -- 18-year old Dean Sutcliffe pleaded guilty Tuesday to two charges of first degree intentional homicide in connection to the shooting death of a teenage friend and the head of her household in Mazomanie.

In entering the pleas to the February killings, Sutcliffe acknowledged to Judge David Flanagan he was being treated for mental illness, but said his treatment did not interfere with his ability to voluntarily enter the pleas.

Sutcliffe's attorney, Tracey Lencioni declined comment after the brief hearing. 

Assistant Dane County District Attorney Paul Barnett tells 27 News Lencioni had previously informed the judge a medical expert had evaluated Sutcliffe for the possibility of Sutcliffe being not guilty due to mental disease or defect, but determined Sutcliffe did not meet the legal criteria for such a defense.

Sutcliffe fatally shot 39-year old Chris Schwichtenberg and 16-year old Ariyl Brady at a mobile home.  Sutcliffe told investigators he considered both victims responsible for his failed relationship with Brady's teenage sister, and her move out of Mazomanie to another family member's home.

Sutcliffe will be sentenced next month.

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