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. "I thought it was just a robbery, you know?" 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. 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. Full Coverage: Boston Marathon Bombings 
 
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 Danny said he didn't understand much of their conversation. -- 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. "It seemed like they were going to New York because they asked me a lot of questions." After the Chinese entrepreneur eventually escaped, police caught up with the brothers and engaged in a gun battle that left Tamerlan Tsarnaev dead. Tamerlan and Dzhokhar Tsarnaev 
 
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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. He could feel Tamerlan grab him and heard him yell an expletive. -- When they stopped to refuel at a Shell gas station, Danny managed to slip away. He ran across the street to a Mobil gas station, pleading with the clerk on duty to call 911. Danny told CNN the fact that his car was low on gas helped save his life. 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. Danny told CNN he felt being Chinese helped save his life. The only question Dzhokhar asked was how much Danny paid for his Mercedes SUV.
– 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."