According to Richard DesLauriers, the special agent in charge of the FBI’s Boston office, the bombs contained BB-like pellets and nails.
The bombs were contained in pressure cookers, hidden inside backpacks, according to the FBI.
The Department of Homeland Security issued a warning in 2004 about pressure cooker bombs. Instructions for making this type of explosive are widely available on the Internet.
Victims:
Martin Richard, 8, a student at Neighborhood House Charter School in Boston.
Krystle Campbell, 29, of Medford, Massachusetts.
Lingzi Lu, a graduate student at Boston University. She was originally from China.
Timeline:
April 15, 2013 – At approximately 2:50 pm, two bombs explode near the finish line of the Boston Marathon. The bombs explode within 8-12 seconds of each other, about 50-100 yards apart.
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October 21, 2013 – In a court document, prosecutors in the Boston Marathon bombing case publicly confirm that deceased suspect Tamerlan Tsarnaev was accused of participating in a gruesome 2011 triple homicide outside Boston.
January 30, 2014 – A notice is filed with a federal court after U.S. Attorney General Eric Holder says that federal prosecutors will seek the death penalty against Dzhokhar Tsarnaev.
May 30, 2014 – Authorities arrest Khairullozhon Matanov of Quincy, Massachusetts and charge him with “one count of destroying, altering, and falsifying records, documents, and tangible objects in a federal investigation, specifically information on his computer, and three counts of making materially false, fictitious, and fraudulent statements in a federal terrorism investigation.” Allegedly, Matanov was a friend of the Tsarnaev brothers and ate dinner with them after the bombing.
August 21, 2014 – Dias Kadyrbayev pleads guilty to obstructing justice. As part of the plea agreement, a sentence of seven years will be recommended by the U.S. attorney, and Kadyrbayev, a Kazakh national, has agreed to be deported after serving his sentence.
October 28, 2014 – Robel Phillipos, a friend of suspect Dzhokhar Tsarnaev, is convicted on two counts of lying to federal agents. He will be sentenced on January 29, 2015.
January 5, 2015 – Trial begins.
Upcoming Events:
January 26, 2015 – Scheduled date of opening arguments in the trial of Dzhokhar Tsarnaev.
