Goldman Sachs executive Rajat Gupta accused of 'throwing away responsibilities' One of the allegations facing Mr Gupta is that following a Goldman board meeting on September 23, 2008, he informed Mr Rajaratnam that billionaire investor Warren Buffett was going to make a $5bn (£3.2bn pound) investment in the bank. The investment came at a time when many Wall Street banks were scrambling for capital. "He broke the law at the time his company was in crisis," US prosecutor Reed Brodsky told a New York court. He alleged that Mr Gupta had a dark side, "hidden from public view," and was "the ultimate insider." A lawyer for Mr Gupta told jurors that the government had "the wrong man on trial." During Mr Rajaratnam's trial last year, the court was played wiretaps of the hedge fund manager's calls, which many legal experts said helped convict him. Prosecutors said that jurors in Mr Gupta's case will hear a recording in which Mr Rajaratnam is alleged to have said that he had been told after a Goldman board meeting that "something good was going to happen." Gary Natfalis, representing Mr Gupta, told the court: "You've got the wrong man on trial here. The evidence will show that Mr Rajaratnam had sources all over town, he had other sources at Goldman Sachs.