Police have arrested Levon Semaj Longstreet, a 17-year-old charged with second-degree murder and second-degree assault in connection with a fatal shooting at the Mall of America in Bloomington, Minnesota. Taeshawn Adams-Wright, 18, has also been charged and a 17-year-old boy and his mother were taken into custody Tuesday in connection with the shooting. An investigation is ongoing and more information will be released as it becomes available.