Wardens found a body in the Connecticut River Tuesday morning, and officials believe it is Richard C. Gammell Sr., a man who stepped into the icy Passumpsic River three miles upstream in February. Gammell, 84, of St. Johnsbury, parked his vehicle on the River Road in St. Johnsbury early on Feb. 27 and tracks in the snow indicate he walked to a frozen section of the river near the bank and plunged into open water. Vermont State Police began a search soon after Gammell was reported missing and have searched in a various ways since. Tuesday was the second time VSP had access to a helicopter. Also joining the search on Tuesday were members of the VSP Scuba Team and wardens with the Vermont Fish and Wildlife Department.