Upon arrival in Vanceboro, Horn checked into the Exchange Hotel and was observed hiding the suitcase in a wood pile outdoors while scouting the railway bridge on the border over the St. Croix River several hundred feet to the east; this bridge was jointly owned by the Canadian Pacific Railway and the Maine Central Railroad.
Upon arrival in Vanceboro, Horn checked into the Exchange Hotel and was seen secretly placing his suitcase in a woodpile outside while inspecting the railway bridge on the St. Croix River border, which was jointly owned by the Canadian Pacific Railway and the Maine Central Railroad.