Sister of Idaho boy injured by cyanide device joins protests

Canyon Mansfield, a 14-year-old Pocatello boy, was injured and watched his dog die in March when the pair activated a M-44 sodium cyanide device that's used to kill coyotes and other livestock predators. His 21-year-old sister, Madison Mansfield,
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Canyon Mansfield, a 14-year-old Pocatello boy, was injured and watched his dog die in March when the pair activated a M-44 sodium cyanide device that's used to kill coyotes and other livestock predators. His 21-year-old sister, Madison Mansfield,