"To his surprise, the app that he used to record his regular rides from Bethesda into Georgetown via the Capital Crescent Trail shared that information publicly, not just with his network of friends and followers. Someone had located a record of his ride on the path on June 2, matched it to the location of the assault from the video, matched his profile picture — white guy, aviator-style sunglasses, helmet obscuring much of his head — to the man in the video, and shared the hunch publicly."