HUDSON, Wis. (AP) -

The insanity trial of a man who has admitted killing his three young daughters in western Wisconsin is winding down.

Attorneys are scheduled to close arguments Tuesday in the Aaron Schaffhausen trial. Jurors will decide if he was legally sane when he killed 11-year-old Amara, 8-year-old Sophie and 5-year-old Cecilia at their River Falls home last July. The defense maintains Schaffhausen is not responsible for the crimes because of a mental illness.

If Schaffhausen is found to be sane, he would likely go to prison for life. If the jury finds he was not responsible, he could be committed to a psychiatric institution and possibly could be released later.