article_snippet: Dun Meng was on the witness stand in the death penalty trial of admitted Boston Marathon bomber Dzhokhar Tsarnaev, Tamerlan's younger brother.
article_snippet: Meng said Tamerlan Tsarnaev demanded cash.
article_snippet: I'm serious," Meng testified that A man in the car told Meng moments before admitting to being the Boston Marathon bomber.
article_snippet: Meng testified that Meng asked Tamerlan Tsarnaev: "Are you going to kill me tonight?
article_snippet: At one point, Tamerlan Tsarnaev went into a gas station convenience store to pay for gas and load up on snacks, Meng testified.
highlights_snippet: Testimony focuses on carjacking after the Boston Marathon bombings .
  
highlights_snippet: Dun Meng says one of carjackers admitted to being a bomber and to killing an MIT officer .