Boston suspects' carjacking victim describes terrifying night 
 
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 (CBS News) You are about to hear, for the first time, from a man who got caught up in the terror in Boston two weeks ago and helped bring it to an end. 
 
 An immigrant from China, he was carjacked by the suspects, but escaped and tipped off the police. 
 
 This 26-year-old Chinese entrepreneur, who calls himself "Danny," had just pulled over in his new Mercedes on a Boston street to send a text message when a man jumped in. 
 
 (At left, watch "Danny" describe how the incident began) 
 
 In his first television interview, he tells his story. At his request, CBS News is concealing his identity and has altered his voice. 
 
 "I thought it was just a robbery, you know?" Danny said. "He took out his gun, pointed to me. He told me that 'You know I am serious. Don't be stupid.'" 
 
 But Danny quickly learned it was more than just a robbery. 
 
 "He asked me a question, like, 'Do you know the Boston explosion on Monday?' I said, 'yes.' He said, you know, 'I did that. And I just killed a policeman in Cambridge.'" 
 
 (At left, "Danny" gives a detailed account of what happened in the car after the suspects took control.) 
 
 The gunman was Tamerlan Tsarneav. His younger brother, Dzhokhar, was trailing behind in another car. When they pulled over, the two suspects loaded the remaining bombs into the back of Danny's car. Tamerlan and his brother spoke to each other in Russian. 
 
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 Danny said he didn't understand much of their conversation. 
 
 "I only heard one word. It's Manhattan," he said. 
 
 "It seemed like they were going to New York because they asked me a lot of questions." 
 
 En route to a gas station, Danny's phone rang. It was his roommate, who wondered why he wasn't at home. Tamerlan pulled a gun out. 
 
 "If you don't want me to pick up the phone, I won't pick it up. I won't say anything," Danny remembers telling Tamerlan. "He told me that you have to answer the phone. But if you use any single world in Chinese, I will kill you." 
 
 When Danny's roommate heard him speaking in English, he responded in Chinese, saying "Why are you speaking in English? Are you okay?" 
 
 (At left, "Danny" describes how the Tsarnaev brothers threatened to kill him if he spoke Chinese on a phone call with his roommate.) 
 
 "I just told him I'm going to sleep over at a friend's place tonight," Danny said. "So after, I hang up the phone. Tamerlan was very happy. He said, 'Good job. Good boy.'" 
 
 Tamerlan and Dzhokhar Tsarnaev 
 
 At some point, he started thinking about his exit strategy. "I have a lot of things to do," he said he remembered thinking. "I have to unlock the door. I have to unfasten my seatbelt. I have to pull the handle on the door." 
 
 Finally, at a gas station Dzhokhar left the car to pay inside. Tamerlan was fiddling with the GPS. Danny knew this might be his last chance. 
 
 "I was counting," Danny said. "I was counting. I was just, 'one two, three, four.' And I just do it. And I did it. I can feel Tamerlan trying to grab me ... I was just running as fast as I can and I never look back." 
 
 (At left, "Danny" describes how he managed to get away.) 
 
 He ran across the street to a Mobil gas station, pleading with the clerk on duty to call 911. 
 
 "Car-jacking occurred at Rich & Shell, 1-0-0-1 Cambridge Street," the police scanner said. "The victim fled the car at the Mobil on Memorial Drive." 
 
 Danny said he doesn't think he's a hero. 
 
 "What I was doing was trying to save myself. The police, they are the hero. They exchange gunfire with the bad guys. I think they are the heroes." 
 
 Danny felt lucky to get out of it alive and in one piece. His car, the 2013 Mercedes SUV was not so lucky. Police used its GPS to track it to where they cornered the Tsarnaev brothers in the shootout. It sustained 32 bullet holes, so the Daimler Leasing Company says a month-and-a-half into the deal, Danny's car is a total loss. 
 
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 During the 90-minute ride of terror, Tamerlan Tsarnaev kept talking. 
 
 He barked out orders, detailed his hatred of Americans and asked his carjacking victim to remain calm. 
 
 Tsarnaev kept asking about the 26-year-old driver's heritage and family. 
 
 "If you cooperate, I won't kill you," said Tsarnaev, who, along with his younger brother, was a suspect in the Boston Marathon bombings and the killing of a police officer. 
 
 The Massachusetts driver, whom CNN is identifying only as Danny because of privacy and safety concerns, gave his account of the April 18 incident and described the very different behavior of Tsarnaev and his younger brother, Dzhokhar. 
 
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 While the talkative Tamerlan was the ringleader during the carjacking, the quiet Dzhokhar responded to multiple orders, such as getting money from an ATM. 
 
 The only question Dzhokhar asked was how much Danny paid for his Mercedes SUV. 
 
 After the Chinese entrepreneur eventually escaped, police caught up with the brothers and engaged in a gun battle that left Tamerlan Tsarnaev dead. 
 
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 Dzhokhar, wounded, was found later and is in police custody. 
 
 Hours after authorities released images of the two bombing suspects, the brothers spontaneously decided to go to New York's Times Square to blow up their six remaining explosives, Dzhokhar Tsarnaev told investigators. His account was outlined by New York's police commissioner. 
 
 Before forcing their way into Danny's vehicle three days after the bombings, the brothers fatally shot a campus police officer at the Massachusetts Institute of Technology, police said. 
 
 Tamerlan Tsarnaev said right after he got in the vehicle that he was responsible for the bombings and the officer's death, according to Danny. 
 
 "This is like something you see in a movie, isn't it?" Tamerlan Tsarnaev said at one point during the carjacking. 
 
 Danny, who first spoke with The Boston Globe, gave CNN this account of the carjacking in a more than hourlong conversation off-camera. 
 
 -- Danny had stopped his vehicle to send a text when Tamerlan walked up and tapped on the window. The suspect, allegedly carrying a handgun, opened the door and got into the passenger seat. 
 
 -- Dzhokhar followed in another vehicle. 
 
 -- Under questioning by Tamerlan, Danny played up being Chinese and tried to humanize himself by talking about cell phones and family. Danny told CNN he felt being Chinese helped save his life. 
 
 -- Eventually, Dzhokhar abandoned his vehicle and the three rode in Danny's SUV. Tamerlan started driving, using back streets in the Boston area, trying to avoid police and searching for an open gas station. 
 
 -- Danny heard the word "Manhattan" at one point and thought the brothers were going to drive to New York, kill him on the way and dump his body under the bridge. 
 
 -- When they stopped to refuel at a Shell gas station, Danny managed to slip away. He could feel Tamerlan grab him and heard him yell an expletive. Danny ran to a Mobil gas station, where he told an employee there what happened. 
 
 Danny told CNN the fact that his car was low on gas helped save his life. 
 
 During the carjacking, Danny thought about a girl in New York whom he really liked. 
 
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 As the surviving Boston bombing suspect lay in a prison hospital bed, investigators 90 miles away spent Friday combing a dump for his laptop and other clues that could shed light on the young men purportedly behind the bloody attack, a law enforcement official with knowledge of the investigation said. 
 
 Information from Dzhokhar Tsarnaev himself spurred authorities to look through the New Bedford, Massachusetts, landfill, the official told CNN's Susan Candiotti. Others who may have knowledge of the computer's whereabouts or may have played a role in disposing of it also provided leads that led to the search, according to a U.S. law enforcement official close to the Boston investigation. 
 
 The 19-year-old Tsarnaev went to school -- at the University of Massachusetts-Dartmouth -- in town adjacent to New Bedford, and he was spotted in his dorm room there in the days after the April 15 twin blasts that left three dead. 
 
 Tsarnaev has not given investigators any substantive information since officials informed him of his constitutional rights prior to charging him with use of and conspiracy to use a weapon of mass destruction, the source said Friday. 
 
 But the the source described the earlier bedside questioning -- which took place in two rounds during parts of Saturday, Sunday and Monday, New York police Commissioner Ray Kelly had said -- as "very thorough" and said investigators do not feel hamstrung. 
 
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 These first interviews took place at Boston's Beth Israel Deaconess Medical Center, where Dzhokhar Tsarnaev had been held since his capture a week ago. 
 
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 Beth Israel is one of several hospitals that treated the more than 260 people injured in the Boston Marathon attack allegedly pulled off by Dzhokhar and his older brother Tamerlan. Some 30 of them remained hospitalized late Friday afternoon, including one in critical condition, according to a CNN tally. 
 
 In recent days, Dzhokhar Tsarnaev has improved enough that he'd been able to sit and was writing, a law enforcement official said. 
 
 At 3:30 a.m., the official said, he was transferred from Beth Israel to Federal Medical Center Devens some 40 miles away. 
 
 The federal Bureau of Prisons hospital, located on the grounds of the former Fort Devens U.S. military base, is designed for patients requiring ongoing medical care, according to the facility's website. 
 
 Dzhokhar Tsarnaev had what appeared to be gunshot wounds to his head, neck, legs and hand when he was captured April 19 after a nearly 24-hour manhunt, according to the criminal complaint accusing him in the marathon blasts. His 26-year-old brother died after a gunfight hours earlier. 
 
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 The suspects' parents, meanwhile, are in Russia. Their mother Zubeidat Tsarnaev told CNN on Friday that she and her husband had left their home in Dagestan for another part of Russia. 
 
 The brothers' father, Anzor Tsarnaev, had said he'd planned to travel to the United States. But that trip has been delayed indefinitely for health reasons, Zubeidat Tsarnaev told CNN's Nick Paton Walsh. She wouldn't elaborate. 
 
 The mother will not be flying to the United States, where she is wanted on felony charges of shoplifting and destruction of property. 
 
 The family lived in Massachusetts before Zubeidat Tsarnaev jumped bail after her arrest on the charges in 2012. The parents moved to Dagestan, a semiautonomous republic in southern Russia that year. 
 
 Russian authorities raised concerns in 2011 to U.S. authorities about Zubeidat and her son Tamerlan, sources told CNN. They asked both the FBI and CIA, separately, about Tamerlan, source said. 
 
 But a U.S. official said that the Russian's case at the time was "thin," though U.S. authorities did add both their names to the Terrorist Identities Datamart Environment, or TIDE, database -- which includes over a half million names -- an intelligence official said. Even so, U.S. authorities have come under fire at home, with lawmakers asking if the FBI and CIA failed to share information. 
 
 In an interview with CNN on Thursday, Zubeidat Tsarnaev said she didn't want to accept the reality of the bombing, saying it was fake. She said she has seen a video pushing the wild idea, and that there was no blood, that paint was used instead. 
 
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 Boston bombings suspect: Tamerlan Tsarnaev 8 photos Boston bombings suspect: Tamerlan Tsarnaev 8 photos Tamerlan Tsarnaev, one of the Boston Marathon bombing suspects, was the subject of an April 2009 photo essay that appeared in a graduate school magazine at Boston University. According to the article, he had hoped to become a naturalized American and make the U.S. Olympic boxing team. Authorities say an overnight shootout with police left him dead on April 19, 2013. Hide Caption 1 of 8 Boston bombings suspect: Tamerlan Tsarnaev 8 photos Tsarnaev answers a call while walking to boxing practice at the Wai Kru Mixed Martial Arts center in Boston. Hide Caption 2 of 8 Boston bombings suspect: Tamerlan Tsarnaev 8 photos Tsarnaev practices boxing at the Wai Kru Mixed Martial Arts center. Hide Caption 3 of 8 Boston bombings suspect: Tamerlan Tsarnaev 8 photos Tsarnaev shows how he strengthens his ankles, according to the photo essay. The photographer did not want to be named for this story. Hide Caption 4 of 8 Boston bombings suspect: Tamerlan Tsarnaev 8 photos Though he had lived in the United States for five years, Tsarnaev said in the essay: "I don't have a single American friend. I don't understand them." Hide Caption 5 of 8 Boston bombings suspect: Tamerlan Tsarnaev 8 photos Tsarnaev works out. Hide Caption 6 of 8 Boston bombings suspect: Tamerlan Tsarnaev 8 photos Tsarnaev stretches during boxing practice. Hide Caption 7 of 8 Boston bombings suspect: Tamerlan Tsarnaev 8 photos Tsarnaev tapes up his hand. Hide Caption 8 of 8 EXPAND GALLERY 
 
 Nonetheless, she broke down when she spoke of the victims. 
 
 "I really feel sorry for all of them. Really feel sorry for all of them," she said, her voice cracking even as she remained resolute that her sons were not involved. 
 
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 While insisting Russian and U.S. authorities often work together, Russian President Vladimir Putin on Thursday said that -- though authorities in Washington were tipped off, to some extent -- he wished they could have done something more that might have prevented the Boston attack. 
 
 "The Russian (authorities), to my great regret, were not able to provide our American colleagues with information that would have operative significance," Putin said. 
 
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 In his first on-camera comments since the bombing, the Russian leader added he hoped that the bombings might spur more cooperation between the two nations. 
 
 "If we combine our efforts, we will not suffer blows like that," he said during a live televised call-in session in Moscow on Thursday. 
 
 Putin also lashed out against those in the West who have slammed Russia for human rights abuses in its actions toward Chechnya. 
 
 "Russia is among the first victims, and I hate it when our Western partners call our terrorists who committed some heinous crimes in Russia ... freedom fighters... They supported them," said Putin, accusing unnamed people or groups of providing Russia's foes with political, financial and "media" support. 
 
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 Based on investigative leads and information provided by Dzhokhar Tsarnaev, investigators believe that each of the brothers had their own remote control device to detonate bombs near the marathon's finish line, said a law enforcement official with knowledge of the investigation on Friday. 
 
 The previous day, a law enforcement official said at least one of the bombs that exploded was set off by remote control. 
 
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 Three days after that attack, and hours after authorities released images of two suspects, they "spontaneously" decided to go to New York's Times Square to blow up their six remaining explosives, Dzhokhar Tsarnaev told investigators. 
 
 But a botched carjacking spoiled the impromptu road trip, said Tsarnaev, whose account was outlined Thursday by New York's police commissioner. 
 
 "We don't know that we would have been able to stop the terrorists had they arrived here from Boston," Mayor Michael Bloomberg said. "We're just thankful that we didn't have to find out that answer." 
 
 Before forcing their way into the vehicle the night of April 18, the brothers shot dead a campus police officer at the Massachusetts Institute of Technology, police said. 
 
 The hijacked vehicle, a Mercedes SUV, ran low on fuel and they stopped at a service station, where the vehicle's owner escaped. Shortly thereafter, police picked up the trail of the SUV. A pursuit followed, during which, authorities say, the men were throwing the bombs out the vehicle's window at them. The gun battle and Tamerlan Tsarnaev's death followed. 
 
 In a Boston Globe story, the man who was carjacked -- a 26-year-old Chinese entrepreneur identified only as Danny -- described his 90-minute ordeal, from when a man brandishing a silver handgun got into his Mercedes to when he ran for his life into a Mobil gas station's supply room. 
 
 During this time, Danny told the Globe, the gun-wielding man confessed to pulling off the Boston bombing and to killing a police officer in Cambridge, Massachusetts, where MIT's campus is located. 
 
 Together they crisscrossed around the Boston area, at one point stopping for gas and another time so that another person could join them in the car. Danny recognized both men from the photos released by the FBI earlier on April 18, men who authorities now say were Tamerlan and Dzhokhar Tsarnaev. 
 
 The carjackers openly discussed traveling to New York, before Danny was able to run to safety. 
 
 "He fell down, screaming, 'Please, please call ... the police. They want to kill me. They have a gun, they have a bomb,''" Tarek Ahmed, the clerk working in the gas station at the time, told CNN's Piers Morgan. 
 
 Danny first hid at the front counter, then went to a storage room. Ahmed, after first making sure this man wasn't one of the bombing suspects and separately thinking he might be drunk, quickly picked up a phone and called 911. 
 
 "I was waiting (for) someone to shoot me at this moment," Ahmed said, adding he couldn't see outside from where he called. "I was waiting to die ... I wanted to finish my call very fast with the police." 
 
 Within five minutes, the gas station was teeming with police. And a short time later, after a chase in which the suspects allegedly shot at police and threw bombs out their windows, Tamerlan Tsarnaev was dead. His brother was captured about 20 hours later. 
 
 James Alan Fox -- a criminology professor at Northeastern University, where Danny had been a student, and who has spent considerable time with him over recent days -- told CNN that the carjacking victim "doesn't like to see himself as a hero." 
 
 "After all, he says, 'I was only trying to save myself,'" Fox said. "But ... his actions, his composure, his smarts were what led this case to a close and may have indeed saved thousands of Americans if we believe, in fact, that (the Boston suspects) had plans to do more bombings in New York City." 
 
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– As the Boston carjacking victim known only as "Danny" continues to recount his story of what happened during his encounter with the Tsarnaev brothers, CNN has what might be the strangest detail of all. Danny says that while Tamerlan made threats, blustered about his hatred of Americans, and generally acted as ringleader, Dzhokhar asked only one question the whole time: He wanted to know how much Danny paid for the Mercedes SUV they were riding in. At another point, the Chinese immigrant tells CBS that his phone rang. "If you don't want me to pick up the phone, I won't pick it up," he told Tamerlan. "I won't say anything." Tamerlan "told me that you have to answer the phone. But if you use any single word in Chinese, I will kill you." Danny complied, and when he hung up Tamerlan said, "Good job. Good boy."