A sale slip from Milton, North Dakota, a card, and a note led investigators to believe the victim was Clyde H. Hall. Authorities investigated if the murder is connected to a similar Milton case. Card case first clue in odd murder mysteryClothing on Corpse Same as that Bought at Milton, North Dakota. In the card case, a cheap leather folder, a card bearing the name of Hall, his occupation and residence as stated, and a sales slip from the firm of A. His pockets were previously rifled of all valuables and the card case thrown away as the authors of his undoing hurried to a remote spot and possible theory advanced yesterday when the finding of the card case came to light.