MADISON, Wis. (AP) -

A Wisconsin judge has entered not guilty pleas for a man accused of killing his three young daughters.

North Dakota construction worker Aaron Schaffhausen faces three homicide counts and an arson charge in the deaths of 11-year-old Amara, 8-year-old Sophie and 5-year-old Cecilia Schaffhausen.

Online court records show Aaron Schaffhausen's attorney stood mute during an arraignment in St. Croix County Circuit Court Tuesday. Judge Howard C. Cameron entered not guilty pleas for Schaffhausen on all the charges.

Police discovered the girls' bodies in the River Falls home they shared with their mother last month. They also found an overturned gasoline can in the basement.

Schaffhausen and the girls' mother divorced in January.