Surveillance video from the Boston Marathon attack shows one suspect dropping his backpack and calmly walking away from it before the bomb inside it exploded, Massachusetts Governor Deval Patrick said Sunday.The video clearly puts 19-year-old Dzhokhar Tsarnaev at the scene of the attack, Patrick said on NBC.'It does seem to be pretty clear that this suspect took the backpack off, put it down, did not react when the first explosion went off and then moved away from the backpack in time for the second explosion," Patrick said. A new report claims that Dzhokhar Tsarnaev (left) is seen in unreleased video to calmly place an explosive device on the ground at the Boston marathon and walk away seconds before it detonates 'It's pretty clear about his involvement and pretty chilling, frankly.'He added, however, that he hasn't viewed all the tapes but had been briefed by law enforcement about them. Investigators have determined the bombs were fashioned from pressure cookers packed with explosives, nails and ball bearings and hidden in black backpacks.

Three people were killed and more than 180 injured when the two bombs exploded Monday about four hours into the race. Dzhokhar Tsarnaev (circled in red) is seen making his way from the scene of the second detonation on Monday at the Boston marathon Tsarnaev was captured Friday after being pulled bloody and wounded from a tarp-covered boat in a suburban Boston backyard. He is being guarded by armed officers while he recovers at a Boston hospital. He is in serious condition and hasn't been able to communicate with investigators.His 26-year-old brother and alleged accomplice, Tamerlan, died earlier Friday after a gunbattle with police.The brothers are also suspected of killing an MIT police officer Thursday and severely injuring a transit officer.Patrick said Sunday on CBS' 'Face the Nation' that law enforcement officials believe the immediate threat ended when police killed Tamerlan Tsarnaev and captured Dzhokhar. This frame grab from a video released by the FBI on Thursday, shows Tamerlan Tsarnaev (left) in black cap, walking ahead of his brother Dzhokhar Tsarnaev (right in white cap) around 15 minutes before they detonated their bombs at the Boston marathon

The moment the second Boston bomb detonated can be clearly seen as the smoke cloud from the first blast billows in the distance Horror: The scene after explosions at the Marathon finish line in Boston, Massachusetts - Three people were killed and over 180 were injured when two bombs exploded on 15 April 2013leatt dbx backpack The governor said he has no idea why someone would deliberately harm 'innocent men, women and children in the way that these two fellows did.'On Saturday, Patrick appeared on the field at Fenway Park with dozens of local and state police before the Boston Red Sox's first home game since the bombings.cosmin backpackMeanwhile, Boston Mayor Thomas Menino told ABC's 'This Week' that he hopes authorities "throw the book" at Dzhokhar Tsarnaev.'I hope that the U.S. attorney takes him on the federal side and throws the book at him,' Menino said. campus essential laptop backpack + free raincover

'These two individuals held this city hostage for five whole days.''They should not do that -- that's what these terrorist events want to do, hold the city hostage and stop the economy of the city.'tylt backpack australiaCampbell, 29, a restaurant manager from Medford, died in the blasts as did eight-year-old Martin Richard (right)8fields backpack Lu Lingzhi, the 23-year-old Boston University graduate student was named the day after the explosions as the third victims of the Tsarnaev brother's terror attacksbackpack electrofisher rental Menino also said information he has indicates that the suspects in the Boston Marathon bombing acted alone.Menino tells 'This Week' that he agreed with the decision to lock down Boston all day Friday, based on information officials had at the time.

He tells 'This Week' that a pipe bomb was found at another location and that another person was taken into custody. The mayor did not elaborate. A person who was injured in an explosion near the finish line of the 117th Boston Marathon is taken away from the scene in a wheelchairIf you followed media coverage of the April 2013 Boston Marathon bombing — and it was hard not to follow it, if you were awake and in the United States – do you remember seeing the video in which Dzhokhar Tsarnaev, the younger of the two suspects, sets his backpack down on the pavement a few moments before one of the bombs goes off? If so, you’re in good company: Lots of people do, including at least one federal appeals court judge in Massachusetts and one potential juror in the Tsarnaev case. But if you think you haven’t seen it, you are right. In fact, it may not exist at all. The public first heard about the video from then-Massachusetts Gov. Deval Patrick on “Meet the Press” on April 21, two days after Tamerland Tsarnaev died following a shootout with police and Dzhokhar Tsarnaev was captured.

Host David Gregory posed this question: “Is there anything on the videotape that maybe the public hasn’t seen about his reaction that was particularly telling that moved the investigation along?” Patrick immediately said he had not seen the videotape. But, he said, “it does seem to – to be pretty clear that – that this suspect took the backpack off, put it down, did not react when the first explosion went off, and, and then moved away from the backpack in time for the second explosion. So pretty, pretty clear about his, his involvement and pretty chilling, frankly, as it was described to me.” The videotape made its second appearance just two days later, also on NBC, in a report on the criminal complaint against Tsarnaev. NBC said the complaint “is built on surveillance video, which shows him dropping a backpack near the finish line and walking away as the bombs go off.” And then it showed the video — sort of. The report began with what appears to be actual surveillance video the FBI used to pinpoint the Tsarnaevs.

They are shown turning onto Boylston Street and walking, Dzhokhar carrying a backpack easily on his right shoulder. “Seven minutes later,” says correspondent Anne Thompson, “Dzhokhar Tsarnaev drops his knapsack at the metal barrier in front of the Forum restaurant.” By this time, though, we are looking not at a video but at a still photograph that shows the backpack on the ground and Dzhokar Tsarnaev a few feet away, apparently walking away. Then again, it could be a picture of him just walking by. The moment of his setting down the backpack is narrated but not shown. Few viewers could be expected to notice the difference, though, and even fewer would remember it. Last month, during a hearing on the defense’s latest bid to have the trial moved, appeals Judge Juan Torruella made reference to the video of the defendant setting down the backpack, saying it had been widely broadcast. Prosecutor William Weinreb, whom Torruella was addressing, didn’t contradict him. However, in his dissenting opinion last week, arguing against the court’s decision to deny change of venue, Torruella mentioned other coverage but not that video.

But the day after the appeals court hearing, a prospective juror said she couldn’t get that video out of her mind, and here was how she described it: “The image of him putting the backpack behind that little boy.” Even in the still shown by NBC, no little boy is visible. (The judge had ordered prospective jurors not to read, watch, or listen to anything about the case.) The Associated Press’s Boston reporter used that juror to headline that day’s dispatch from court, saying that the juror was “describing an image authorities say shows Tsarnaev placing a bomb near 8-year-old Martin Richard, one of three people killed when twin bombs exploded near the marathon finish line April 15, 2013.” The story ran all over the country. Even Boston’s public radio station WBUR, whose own reporters have been supremely skeptical of the investigation, ran it and promoted it uncritically. Anyone who is in the business of eliciting people’s memories about historic events knows that collective memory has a way of displacing personal experience.

Maria Konnikova recently wrote in The New Yorker about psychological studies that show that people typically misremember what, when and how they learned about big things that happened just a couple of years earlier. Oles Adamovich and Daniil Granin, two Russian writers who compiled an oral history of the Siege of Leningrad, recalled that their subjects would spend hours reproducing received memories — stock stories that they had read in books or newspapers or seen in films — before getting to their own — if they ever did. In the Tsarnaev trial, the defense has tried at least half a dozen ways to make the very point that saturation publicity has altered people’s perceptions in ways of which they are not necessarily aware – and that this renders meaningless jurors’ sincere commitment to being impartial. After imagining this video for a couple of years, what will they feel when they finally see it during trial? But now an even more difficult question has been raised: What if jurors never see this video?