Assistant U.S. Attorney Richard Tarlowe told a jury yesterday there was powerful circumstantial evidence that Rajat Gupta, a former Goldman Sachs and Procter & Gamble board member, broke the law by disclosing confidential non-public information to Galleon Group hedge fund founder Raj Rajaratnam.

Delivering an animated closing argument in the three-week-long trial, Tarlowe said Gupta “abused his position as a corporate insider by providing secret corporate information” about deals and earnings “to his longtime business partner and friend.”