The animal was being restrained by a handler when it attacked Haley Hilderbrand, of Altamont, Kansas.
Dozens of tourists watched in horror as the 17-year-old was mauled at the Lost Creek Animal Sanctuary.
Emergency staff were not able to revive Haley, who was pronounced dead at the scene.
Last night, her family were too devastated to speak about the tragedy
Officers and handlers killed the animal shortly after the attack