A memorial honors the victims of Monday's bombings near the Boston Marathon finish line on Saturday.
Credit Jim Bourg / Reuters/Landov
Law enforcement evidence technicians investigate the scene of the bombings Saturday.
Credit Matt Rourke / AP
Investigators work near the location where suspect Dzhokhar Tsarnaev was arrested, in Watertown, Mass., on Saturday.
Credit Matt Rourke / AP
Neighbors gather near the location where Tsarnaev was arrested.
Credit Massachusetts State Police / Reuters/Landov
Tsarnaev, 19, is searched by law enforcement officers Friday.
Credit Jim Rogash / Getty Images
David Ortiz of the Boston Red Sox speaks during a pre-game ceremony in honor of the victims of the marathon bombings at Fenway Park on Saturday.
Credit Jim Rogash / Getty Images
David Ortiz, No. 34 of the Boston Red Sox, speaks during a pre-game ceremony in honor of the victims of the marathon bombings at Fenway Park on Saturday in Boston.
A chemical trailer sits among the remains of a fertilizer plant.
Credit WFAA-TV / AP
This video image shows injured people being treated on the high school football field turned into a staging area on Wednesday.
Credit Mike Stone / Reuters /Landov
Smoke rises as water is sprayed after an explosion at a fertilizer plant in the town of West, Texas.
Credit LM Otero / AP
Firefighters search an area destroyed by the explosion.
Credit LM Otero / AP
A fire still burns in a apartment complex destroyed near the plant.
Credit Mike Stone / Reuters /Landov
The remains of a fertilizer plant burn.
Credit Mike Stone / Reuters /Landov
Waco Police spokesman William Swanton speaks at a media conference regarding the explosion.
Credit Rod Aydelotte/Waco Tribune Herald / AP
An injured person is assisted by two men as a nursing home is evacuated after the explosion.
Credit LM Otero / AP
Firefighters conduct a search and rescue on Thursday of an apartment building destroyed by an explosion at a fertilizer plant in West, Texas, late Wednesday. The massive explosion at the plant killed as many as 15 people and injured more than 160.
Credit Larry W. Smith / EPA/Landov
Maria Galvin cleans up broken glass in the front of her business, after the windows was blown out by the explosion.
Credit Mike Stone / Reuters /Landov
The remains of a fertilizer plant burn after an explosion at the plant in the town of West, Texas.
