Manhunt — John Benteen

Sundance was riding north from Arizona to Seattle at the request of an old friend. Several trappers had been murdered while setting out their winter lines. There were no clues except for an old piece of wood found near each body with one word, Carcajou, burnt into it.
No sooner had Sundance set foot in town than he found himself in a tangle with a couple of gunmen aiming to see that he didn't stick around long. But Sundance wasn't the kind to get caught in a trap. Just before the two men died, one managed to utter a single word: Carcajou!