US attorney: Man who pledged allegiance to ISIS planned to attack Mall of America

US attorney reports that 18-year-old Sheikhdoon Abdullahi Mohamud was arrested Tuesday for plotting an attack on the Mall of America. The FBI alleges that Mohamud pledged allegiance to ISIS and intended to kill between 30 and 60 people. The planned assault was scheduled to take place later this month. Authorities have charged the Minnesota man following the discovery of his plot to target the shopping center and commit mass casualties in the name of the terrorist organization.