sentences:  Human rights groups have said they suspect that Memon and several others were held in secret extrajudicial detention by Pakistani intelligence agents probing Pearl's slaying.In December 2014, when the United States Senate Intelligence Committee published its Senate report of the CIA's use of torture, it confirmed suspicions that Memon was held in the CIA's network of black sites, prior to transfer to Pakistan's secret torture prisons.Amina Masood Janjua, Memon's lawyer and a human rights activist for missing Pakistanis, said, Memon was in the custody of Pakistani intelligence officials.