Who brought cocaine to the White House?

<p>First: The Secret Service is trying to determine who brought a bag of cocaine into the West Wing. </p> <p>Also: The Philadelphia mass shooting suspect appears in court as we're learning about his disturbing social media posts. What might they reveal about a motive? </p> <p>And: President Zelensky warns that Russia is ready for a potential attack on a Ukrainian nuclear power plant under the control of Russian forces. </p><p>To learn more about how CNN protects listener privacy, visit cnn.com/privacy</p>