cross-country runner. straight a student who wanted to be a doctor. beau, age 18, a popular kid who played soccer. last fall this florida family started to unravel julie told friends she was struggling as a parent of teenagers. calix was acting up, disobeying julie. sometimes not speaking to her at all. in november, it took a serious turn child protective services was called to the home. >> they seemed like a loving family having typical teenage issues. >> calix told authorities that she and her mother had gotten into an argument in the car and her mom hit her. >> the teenager said a few things. the mother responded by slapping her with an open fist. >> julie said she slapped her daughter because taking privileges away wasn't working anymore. the department of children and families was told the