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April 16, 2013 | By Shashank Bengali, Joe Tanfani and Richard A. Serrano, Times Staff Writers
BOSTON - The bombs that tore past the finish line of the Boston Marathon were probably made with simple kitchen pressure cookers packed with metal pellets and nails and hidden in black nylon bags, investigators said Tuesday. FBI lead investigator Rick DesLauriers said fragments from a pressure cooker and pieces of black nylon were discovered near one of the bomb sites. Physicians said they had extracted from the wounded large numbers of pellets and carpenters' nails, common shrapnel components in the elementary bombs widely used in Afghanistan and Pakistan - and also discovered in at least two previous attempted terrorist attacks in the United States.
October 28, 2009 | Tony Perry
Reporting from Twentynine Palms Marine Base, Calif. -- As Marines train to deploy to war zones, there is daily discussion about how to detect and disarm the buried roadside bombs that are the No. 1 killer of Marines in Iraq and Afghanistan. Military researchers have found that two groups of personnel are particularly good at spotting anomalies: those with hunting backgrounds, who traipsed through the woods as youths looking to bag a deer or turkey; and those who grew up in tough urban neighborhoods, where it is often important to know what gang controls which block.
October 18, 2013 | By Richard Winton and Kate Mather
The ground service worker charged with setting off two dry ice bombs at Los Angeles International Airport, causing a massive security response, initially removed the cooling agent from a plane cargo bay out of concern that it could harm a dog that was being loaded for transport, his lawyer said. Dicarlo Bennett on Thursday pleaded not guilty to two charges of possession of a destructive device in a public place in connection with the dry ice bombs that exploded in a Terminal 2 toilet and on the tarmac outside the Tom Bradley International Terminal earlier this week.
October 9, 2009 | Robert J. Lopez
By all appearances, Rebecca Kuzelka used her home to operate a child day-care business on a quiet, tree-lined street in Lake Elsinore. But a different picture of the 55-year-old mother emerged after her home was rocked by an explosion late Wednesday night. On Thursday morning, deputies arrested Kuzelka and her son Grey Kuzelka, 21, on suspicion of using their home to make bombs and grow marijuana. Another son, Benjamin Kuzelka, 23, injured his hand in the explosion and was hospitalized.
April 15, 2013 | By Michael Muskal, Richard A. Serrano and Joe Tanfani, This post has been corrected and updated, as indicated below.
BOSTON--- Two bombs shattered the celebratory mood of the Boston Marathon Monday, turning the finish line into a zone of carnage that left at least three dead and more than 130 injured. The explosions hours into the 117th running of the iconic 26.2-mile race came well after the elite runners had finished, but near the time when the bulk of the about 27,000 runners were laboring toward the finish line.  Two bombs hundreds of yards apart went off within seconds of each other on what was also Patriots Day. Dazed and bloodied victims walked around seeking help as officials rushed to their aid, taking them to one of the medical tents that dot any marathon route.
January 24, 1997 | From Times Staff and Wire Reports
Both bombs that exploded outside an Atlanta abortion clinic last week were made of dynamite, which is regulated and not often found in amateur bombs, federal law enforcement officials said. Each bomb may have contained 10 to 20 sticks of dynamite, these officials said on condition of anonymity. Legal buyers of dynamite are required to get a federal permit to transport it between states. The presence of "high-grade commercial dynamite" was reported by CBS News, citing unidentified sources.
February 11, 2007 | From Times Wire Reports
Two pipe bombs sent late last month to offices in Kansas City may be linked to a suspect who has been sending increasingly threatening letters to financial institutions since at least 2005. Officials have suggested in both cases that the devices were not working bombs that could have exploded. The devices appear to be a sign that the suspect, who calls himself "The Bishop," may be closer to sending live bombs, said Fred Burton, a counterterrorism expert.
November 27, 2006 | From Times Wire Reports
Two teenage boys have been charged with setting off two homemade bombs inside a Wal-Mart filled with holiday shoppers, authorities said. Hundreds of customers were evacuated from the store when the acid bombs detonated Saturday. At least eight people were treated for irritation to their eyes and throat or ringing in their ears, authorities said.
April 29, 2013 | By Brian Bennett, Kim Murphy and Sergei L. Loiko, Los Angeles Times
WASHINGTON - The FBI has found female DNA on at least one of the two homemade bombs detonated during the Boston Marathon on April 15, complicating the task of identifying how and where the deadly devices were constructed. The presence of genetic material does not necessarily mean a woman helped build the pressure-cooker bombs that killed three people and injured more than 260 others, said a law enforcement official, who discussed the discovery on condition of anonymity because the investigation is ongoing.
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