From poacher to ranger: saving China's Siberian tigers In the northern mountains bordering Russia, everyone knew the spry Chinese man as a skilled and ruthless hunter -- the kind who once killed a mother black bear as her cubs looked on. But instead of stalking the woods for prey, Liang Fengen now roams the hills without a rifle, working as a ranger to save the area's endangered IMAGES AND SOUNDBITESWARNING: SOME IMAGES OF ANIMAL CRUELTY