10 PM ET: Ukrainians recapture island, Delta pilots protest, Alzheimer’s discovery & more

Ukrainians have retaken a strategic territory once controlled by Russian troops. Plus, one of the suspects charged in a deadly smuggling operation in Texas made his first court appearance. We'll also explain the demands and frustrations that have some Delta pilots protesting. The US stock market marked its worst first half of the year since 1970. Lastly, we’ll tell you what scientists discovered that may explain why more women get Alzheimer’s than men. To learn more about how CNN protects listener privacy, visit cnn.com/privacy