In The Lovely Bones did it ever clarify who removed Susie's monopoly piece from Buckley's room?

The monopoly
piece in byis significant because it used to be Susies favorite piece. In
fact it is this piece that Jack uses to try and help Buckley understand that Susie will never
come back. Jack gives the piece to Buckley, but it mysteriously disappears from Buckleys
dresser. The author never clearly indicates...