WASECA, Minn. (AP) - A judge has certified a Waseca teenager accused of planning to kill his family and attack his high school to stand trial as an adult.

Reports say Waseca County District Judge Robert Birnbaum on Friday ordered that John LaDue be immediately transferred from a juvenile center to the Waseca County Jail pending his first adult court appearance.

La Due is 18 but was 17 when he was arrested last year after police found him in a storage unit with bomb-making materials. Attempted-murder charges were dropped, but he still faces six counts of possessing explosive devices.

LaDue faces a five-year sentence under state guidelines if convicted on all counts. In juvenile court he could be held no longer than his 21st birthday.

The defense is considering an appeal.