Two people have been killed in the crash of a corporate jet that went down on an island in St. Charles County shortly after takeoff from the airport in Chesterfield. An official with the St. Charles County Sheriff’s office says the wreckage was spotted early this morning on Howell Island. The two victims were the only two people aboard the small plane, which began its flight shortly after 8 o’clock last night for Toledo, Ohio. The names of the victims have not been released. Authorities are investigating the cause of the crash.