A family in Indiana is mourning the loss of a 35-year-old mother-of-two who they said died after drinking 64 ounces of water in 20 minutes. Ashley Summers was celebrating the Fourth of July on a lake in Indiana when she started to feel intensely dehydrated, according to her brother, Devon Miller. "At one point during the day, she started getting a bad headache," Miller told "Good Morning America." "So, she was drinking a lot of water." Miller said Summers drank the equivalent of four 16-ounce bottles of water in 20 minutes, and then later collapsed inside the garage of her...