A four-year-old in LA is selling lemonade with an emphasis on aid. Emily McGlocklin's younger sister is in the hospital with a rare disease called Niemann-Pick disease type C, which is sometimes called childhood Alzheimer's. Emily's sister is taking experimental drugs. The family has been able to raise more that $50,000 for Hope for Marian in just one month. You can read more about the sweet sister at KABC.