Mumbai, April 18: More than 100 witnesses, including US FBI agents, will testify at the trial of the man police say is the only surviving gunman in the bloody Mumbai siege, Indian prosecutors said today. Five foreign experts will present evidence against Mohammed Ajmal Kasab, special public prosecutor Ujjwal Nikam told the court today on the second day of the trial. Kasab is accused of being one of 10 gunmen who killed 166 people, including several Americans, in a three-day rampage across the city that targeted a train station, two luxury hotels and a Jewish centre. Nikam said the FBI had analysed four global positioning devices found on the dead gunmen after the attacks and these would be instrumental in proving the men had come from Pakistan. Opening the trial on Friday, Nikam said Kasab had a direct hand in the deaths of 72 people and was part of “a criminal conspiracy hatched in Pakistan” which could not have been undertaken without training from “intelligence professionals” in Pakistan.