The parents of Sarah Katz, a 21-year-old college student who died after drinking Panera Bread's Charged Lemonade, have filed a lawsuit alleging that the drink contains more caffeine than Red Bull and Monster Energy Drink combined and no consumer warning. The lawsuit seeks damages for the parents' loss, punitive damages for Panera's alleged negligence, and an injunction to prevent Panera from selling the drink without warning customers of its potential health risks. Panera has yet to comment on the lawsuit.