The best Reply All episodes are Internet rabbit holes explored to the extreme, and “Boy in Photo” offers enough twists and turns for even the most insatiable sleuths. In 2006, an ILX message board rallied around a photo of two girls and one lonely-looking guy, whom the message board named “Wayne.” The members of the message board followed the lives of the characters on social media for the next 10 years. In this episode, host PJ Vogt apprehensively travels to the Philadelphia suburb where he grew up to track down the real Wayne—and find out what really happened that night.