The Minnesota-based lender said the medical examiner's office has not been able to confirm whether Dolan was on board, but "we believe he was." The National Transportation Safety Board said it is investigating the crash of a Socata TBM 700 airplane on Saturday near Brooklyn Park, Minnesota. The plane had departed Des Moines International Airport in Iowa and was bound for Anoka County-Blaine Airport when the crash occurred, CBS News reported, citing the Federal Aviation Administration.