Gupta was caught on wiretaps using his status to share tips, though much of the evidence against him was circumstantial
Michael Wolff: Popular appetite for salacious moralising has abolished the old distinction between a court of law and the court of public opinion
Rajat Gupta pleads not guilty to six charges of insider trading in federal court after surrendering to authorities
Former director said to have run 'instant messaging' service to Galleon hedge fund chief
