HUTCHINSON– Jury selection was completed late Monday afternoon for the case against a Kansas teen accused of setting the September 2013 fatal fire that killed his mother and sister.

Samuel Vonachen,17, is charged with two counts of first-degree murder and aggravated arson after he allegedly spread gas through the downstairs of the home, and set it on fire.

The 12 jurors and three alternates include eight men and seven women.

The state’s case will begin following opening statements on Tuesday.

The state will argue that what he did was premeditated and that he knew exactly what he was doing, while the defense will argue he shouldn’t be held responsible because of mental disease or defect.

The trial in front of District Judge Trish Rose could last as long as 10-days.