(Brooklyn Center, MN)  —  A one-year-old is dead after a car rolls off an interstate overpass in the Twin Cities.  The Minnesota State Patrol says a car toppled off Dupont Avenue and onto Interstate-94 in Brooklyn Center early Sunday morning.  The driver and three kids were hurt in the crash, while a one-year-old boy died.  The State Patrol says it believes alcohol was a factor in the crash and the driver has been arrested.