Siegel visited the Pakistani Embassy in Washington and testified before a temporary court at Office of the Commissioner Rawalpindi through a video-link.
Former PM Benazir Bhutto has sent an e-mail to Siegel, ten days prior to her assassination, informing him about serious threats to her life.
Well-known US journalist Mark Siegel was once the class fellow of late Benazir Bhutto and the former Pakistan premier had enough confidence in him.
