Like most everyone else in Watertown, Jennifer Rivera, a twenty-eight-year-old accountant and volunteer E.M.T., felt a mixture of relief and apprehension on Friday when, at around 6P.M., Massachusetts Governor Deval Patrick lifted the “shelter-in-place” order that had kept her cooped up with her roommates all day. “I mean, I know everyone had cabin fever. But I would have felt a lot safer if they’d caught him.”

She wouldn’t have long to wait. As the skies darkened over Boston, people left their homes to run errands, find an open restaurant, or share stories with neighbors. But within the hour, more shots were fired, and sirens rang through the streets once more. A line of emergency vehicles came screaming down Mt. Auburn Street, Watertown’s main strip. She followed the sound of the sirens until she was pushed up against yellow police tape, a few blocks from where Dave Henneberry discovered Suspect Two—a.k.a. Dzhokhar Tsarnaev—huddled inside Henneberry’s white Seahawk pleasure cruiser. There, she was joined by pensioners out walking their dogs, curious journalists and neighbors, and a group of boisterous teens whose pick-up football game had been interrupted by the manhunt’s denouement. The teen-agers jostled each other for position as annoyed news cameraman tried to wave them from the frame.