WASECA — An attorney for a southern Minnesota teen accused of planning to kill his family and attack his high school wants charges against him dropped.

Eighteen-year-old John LaDue of Waseca is charged with six counts of possessing explosive devices. He was 17 when he was arrested in 2014, but a judge ruled last month that he should stand trial as an adult.

Authorities say LaDue was found in a storage unit with bomb-making materials, and that firearms and ammunition were seized from his home.