Suspect in Wisconsin school shooting identified as 15-year-old girl

Police say one student and one teacher were killed in a school shooting at Abundant Life Christian School in Madison, Wisconsin, Monday. The suspected shooter, identified as a 15-year-old female student at the school, is believed to have died of a self-inflicted gunshot wound. CBS News correspondent Ian Lee has more. (Editor's note: Police said a second-grade student was first to call 911 to report the shooting. On Tuesday, they corrected that account, clarifying that it was a second-grade teacher who initially made the 911 call.)