An expert for the prosecution has testified that a teenager accused of plotting to attack his southern Minnesota school poses "a significant risk for future violence."
A federal law enforcement official says the chemicals found in a Waseca storage shed last month created a dangerous situation regardless of whether a teenager accused of making explosives there was ever going to carry out a plot to attack his school.
A woman credited with potentially averting a school attack in the southern Minnesota city of Waseca says the suspect acted strangely as he approached a self-storage facility near her apartment.
Officials at the Farmamerica interpretive center near Waseca say damages from a roof collapse could top $100,000. Heavy snows caused a large portion of a machine shed roof to give way on Monday.