IOWA CITY (AP) - A Coralville woman will be arraigned on Dec. 2 on charges she killed her 2-year-old son and attempted to kill her 7-year-old son.

Michelle Kehoe is expected to enter a plea at the hearing. The 35-year-old faces charges of first-degree murder, attempt to commit murder and child endangerment resulting in serious injury.

Kehoe is in custody at the Buchanan County jail on a $2.5 million bond.

According to police, on Oct. 26 Kehoe told her husband she was taking her sons, Seth, and Sean, to visit relatives in Sumner. They never arrived, and police allege Kehoe drove her sons to a pond near Littleton and bound them with duct tape before cutting their throats.

Sean Kehoe and the body of Seth Kehoe were not found until the next day.