Police in tactical gear conduct a search for a suspect in the Boston Marathon bombings, Friday, April 19, 2013, in Watertown, Mass. The bombs that blew up seconds apart near the finish line of the Boston Marathon left the streets spattered with blood and glass, and gaping questions of who chose to attack and why. (AP Photo/Matt Rourke)
Gallery: Police converge on suspects in Boston
Apr. 19, 2013 @ 09:03 AM
Boston authorities suspended all mass transit and urged people to stay indoors Friday as they searched for the second of two suspects in the Boston Marathon boming Monday. The first suspect was killed in a shootout overnight.