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34-year-old singer aaron carter found dead in his home. how family and friends are remembering the former child pop star. plus, candidates in toss-up races across the country are hoping to catch the momentum in this 11th hour. cnn takes you live to pennsylvania, georgia, new york, and florida. and later -- did you check your tickets? well, no worry. you didn't win the powerball. but nobody else did either. we'll tell you how much the next expected jackpot will be worth. hello, everyone. thank you for joining us this sunday. i'm fredricka whitfield. we begin this hour on the campa...

>> in these mountains, people and pumas just don't get along. this man alone has killed dozens of them. and today, he has one more in his sights. at the ends of the earth is a land of extremes. home to spectacular wildlife. for centuries, people and animals have battled for supremacy. but now, enemies are becoming allies. together, they face new chall challenges in a rapidly changing world. >> you are at the mercy of the elements. >> this is the story of what it takes to survive on the edge of the world. patagonia, one of the world's last great wildernesses. it stretches for more t...

in these mountains, people and pumas just don't get along. this man alone has killed dozens of them. and today he has one more in his sights. [ speaking foreign language ] at the ends of the earth is a land of extremes, home to spectacular wildlife. for centuries people and animals have battled for supremacy. but now enemies are becoming allies. together they face new challenges. in our rapidly changing world. >> you are at the mercy of the elements. this is the story of what it takes to survive on the edge of the world. ♪ patagonia, one of the world's great last wildernesses. it s...

>> in these mountains, people and pumas just don't get along. this man alone has killed dozens of them. and today he has one more in his sights. ♪ >> at the ends of the earth is a land of extremes, home to spectacular wildlife. for centuries people and animals have battled for supremacy, but now enemies are becoming allies. together they face new challenges in our rapidly changing world. >> you are at the mercy of the elements. this is the story of what it takes to survive on the edge of the world. >> patagonia, one of the world's last great wildernesses. it stretches for more than...

>> in these mountains, people and boomers just don't get along. this man alone has killed dozens of them. and today, he has one more in his sights. >> [speaking spanish] . >> at the ends of the earth is a land of extremes. home to spectacular wildlife. for centuries, people and animals have battle for supremacy. now, enemies are becoming allies . together, they face new challenges in our rapidly changing world. >> you are at the mercy of the elements. >> this is a story of what it takes to survive on the edge of the world. patagonia, one of the world's last great wildernesses. it str...