Shootings In Cambridge, Watertown Draw Massive Police Response

Members of a police S.W.A.T. team run to the scene where it was believed 19-year-old bombing suspect Dzhokhar A. Tsarnaev is in hiding on April 19, 2013 in Watertown, Massachusetts. (Spencer Platt/Getty Images)

Members of a police S.W.A.T. team run to the scene where it was believed 19-year-old bombing suspect Dzhokhar A. Tsarnaev is in hiding on April 19, 2013 in Watertown, Massachusetts. (Spencer Platt/Getty Images)

<> on April 19, 2013 in Cambridge, Massachusetts.