On April 19, 2013, as the Boston-area was on lockdown, the city of Watertown, Mass. became the focal point of a massive manhunt for Dzhokhar Tsarnaev, the second suspect in the Boston Marathon bombing.
Residents took to social media and posted photos of their first-hand experiences as S.W.A.T. teams entered their homes, tanks took over side streets, and helicopters flew overhead. Here are some of the images from that day.