Boston Deals With Aftermath Of Marathon Explosions
/ CBS News
A man and woman leave after pausing at the makeshift memorial on Boylston Street to the victims of the Boston Marathon bombing April 17, 2013 in Boston, Massachusetts. Boston continues to return to normal, as businesses and streets are reopened following two bomb explosions at the finish line of the marathon that killed 3 people and injured over a hundred more. (Photo by Darren McCollester/Getty Images)
Boston Deals With Aftermath Of Marathon Explosions
A man pauses at the makeshift memorial on Boylston Street to the victims of the Boston Marathon bombing April 17, 2013 in Boston, Massachusetts. Boston continues to return to normal, as businesses and streets are reopened following two bomb explosions at the finish line of the marathon that killed 3 people and injured over a hundred more. (Photo by Darren McCollester/Getty Images)
Boston Deals With Aftermath Of Marathon Explosions
Flowers and a sign are left on a street post in Medford Square in remembrance of Krystle Campbell, 29, of Medford, Massachusetts, who was killed by the bomb explosions at the Boston Marathon on April 17, 2013 in Medford, Massachusetts. The explosions, which occurred near the finish line of the 116-year-old Boston race on April 15, resulted in the deaths of three people with more than 170 others injured. (Photo by Jared Wickerham/Getty Images)
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Boston University School of Theology graduate student, Meghan Nelson places a pair of running shoes, flowers and a Boston University key chain at a makeshift memorial for fellow student 23-year-old Lu Lingzi from China April 17, 2013 in Boston, Massachusetts. According to news sources Lu a graduate student in statistics at Boston University, was one of the three people killed in the Boston Marathon bombings on Monday. AFP PHOTO/Stan Honda (Photo credit: STAN HONDA/AFP/Getty Images)
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Boston University School of Theology graduate student, Meghan Nelson places a pair of running shoes, flowers and a Boston University key chain at a makeshift memorial, at the Martin Luther King Jr. memorial, for fellow student 23-year-old Lu Lingzi from China April 17, 2013 in Boston, Massachusetts. According to news sources Lu a graduate student in statistics at Boston University, was one of the three people killed in the Boston Marathon bombings on Monday. AFP PHOTO/Stan Honda (Photo credit STAN HONDA/AFP/Getty Images)
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Boston University School of Theology graduate student, Meghan Nelson(not seen) placed a pair of running shoes, flowers and a Boston University key chain at a makeshift memorial for fellow student 23-year-old Lu Lingzi from China April 17, 2013 in Boston, Massachusetts. According to news sources Lu a graduate student in statistics at Boston University, was one of the three people killed in the Boston Marathon bombings on Monday. AFP PHOTO/Stan Honda (Photo credit: STAN HONDA/AFP/Getty Images)
Boston Deals With Aftermath Of Marathon Explosions
Members of the Federal Bureau of Investigation (FBI), search for clues near the scene of twin bombings at the Boston Marathon on April 17, 2013 in Boston, Massachusetts. The explosions, which occurred near the finish line of the 116-year-old Boston race on April 15, resulted in the deaths of three people with more than 170 others injured. Security has been heightened across the nation as the search continues for the person or people behind the bombings. (Photo by Spencer Platt/Getty Images)
Boston Deals With Aftermath Of Marathon Explosions
Members of the Federal Bureau of Investigation (FBI), search for clues near the scene of twin bombings at the Boston Marathon on April 17, 2013 in Boston, Massachusetts. The explosions, which occurred near the finish line of the 116-year-old Boston race on April 15, resulted in the deaths of three people with more than 170 others injured. Security has been heightened across the nation as the search continues for the person or people behind the bombings. (Photo by Spencer Platt/Getty Images)
Boston Deals With Aftermath Of Marathon Explosions
Members of the Federal Bureau of Investigation (FBI), search for clues near the scene of twin bombings at the Boston Marathon on April 17, 2013 in Boston, Massachusetts. The explosions, which occurred near the finish line of the 116-year-old Boston race on April 15, resulted in the deaths of three people with more than 170 others injured. Security has been heightened across the nation as the search continues for the person or people behind the bombings. (Photo by Spencer Platt/Getty Images)
Boston Deals With Aftermath Of Marathon Explosions
Members of the Federal Bureau of Investigation (FBI), search for clues near the scene of twin bombings at the Boston Marathon on April 17, 2013 in Boston, Massachusetts. The explosions, which occurred near the finish line of the 116-year-old Boston race on April 15, resulted in the deaths of three people with more than 170 others injured. Security has been heightened across the nation as the search continues for the person or people behind the bombings. (Photo by Spencer Platt/Getty Images)
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A sign at the entrance at Boston University April 17, 2013 in Boston. According to news sources Lu Lingzi, a 23-year-old Chinese graduate student in statistics at Boston University, is one of the three people killed in the Boston Marathon bombings on April 15. AFP PHOTO/Stan Honda (Photo credit STAN HONDA/AFP/Getty Images)
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Close up of a note and left left by Journalism student Joy Liu at a memorial site at Boston University April 17, 2013 in Boston. According to news sources Lu Lingzi, a 23-year-old Chinese graduate student in statistics at Boston University, is one of the three people killed in the Boston Marathon bombings on April 15. (Photo credit: STAN HONDA/AFP/Getty Images)
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Journalism student Joy Liu places an Irish hat and note at a memorial site at Boston University on April 17, 2013 in Boston. According to news sources Lu Lingzi, a 23-year-old Chinese graduate student in statistics at Boston University, is one of the three people killed in the Boston Marathon bombings on April 15. AFP PHOTO/Stan Honda (Photo credit should read STAN HONDA/AFP/Getty Images)
Boston Deals With Aftermath Of Marathon Explosions
An employee at a restaurant looks out as members of the Federal Bureau of Investigation (FBI) search for clues near the scene of twin bombings at the Boston Marathon on April 17, 2013 in Boston, Massachusetts. The explosions, which occurred near the finish line of the 116-year-old Boston race on April 15, resulted in the deaths of three people with more than 170 others injured. Security has been heightened across the nation as the search continues for the person or people behind the bombings. (Photo by Spencer Platt/Getty Images)
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Boston Deals With Aftermath Of Marathon Explosions
FBI crime scene investigators sweep up Boylston Street just past Berkeley Street towards the scene of the bombing looking for evidence April 17, 2013 in Boston, Massachusetts. Investigators continue to work the scene of two bomb explosions at the finish line of the marathon that killed 3 people and injured over one hundred more. (Photo by Darren McCollester/Getty Images)
Boston Deals With Aftermath Of Marathon Explosions
FBI crime scene investigators look for evidence on Boylston Street after placing an evidence marker just past Berkeley Street April 17, 2013 in Boston, Massachusetts. Investigators continue to work the scene of two bomb explosions at the finish line of the marathon that killed 3 people and injured over one hundred more. (Photo by Darren McCollester/Getty Images)
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Boston Deals With Aftermath Of Marathon Explosions
Investigators stand at the scene of twin bombings at the Boston Marathon on April 17, 2013 in Boston, Massachusetts. The explosions, which occurred near the finish line of the 116-year-old Boston race on April 15, resulted in the deaths of three people with more than 170 others injured. Security has been heightened across the nation as the search continues for the person or people behind the bombings. (Photo by Spencer Platt/Getty Images)
