Updated: 13-year-old charged with making bomb threats

A 13-year-old accused of making multiple bomb threats earlier this week at a Delaware County high school is charged with four felony counts and if convicted, could face up to 20 years in a  juvenile  detention facility.

Jacob Ahlers of Greeley, is charged in juvenile court with two counts of threat of terrorism and two counts of false reports, all felonies. Each charge carries a five year term. Ahlers is accused of calling 911 early Tuesday and telling dispatchers there were multiple bombs at Edgewood-Colesburg High School in Edgewood.

Law enforcement conducted a search of the building and grounds and explosive detection dogs from the Dubuque Police Department and the State Fire Marshall's Office aided in the search. Authorities didn't find any type of explosive device or suspicious items.

Ahlers is the younger brother of Brandon Ahlers, 20, of Manchester, who is charged with two counts of aiding and abetting in first-degree murder. Brandon Ahlers is accused in the double homicide of Janet, 62, and Richard, 55 Sweet on May 13, 2012. According to criminal complaint, he suggested to his friend Isaiah Sweet different ways to kill the couple.

Isaiah Sweet, 18, of Manchester, grandson of Janet and Richard, is also charged with two counts of first-degree murder. Janet and Richard Sweet were found dead in their home with gunshot wounds to the head.

A bench trial for Brandon Ahlers is set May 22, and Sweet's trial is set Oct. 16.