The body of 39-year-old Inomjon Yoqubov was given to his family and the burial took place on July 19 in the eastern Uzbek city of Margilon.
Yoqubov's sister, Nazokat, told RFE/RL's Uzbek Service today that there were several wounds on the body.
In 1998, Yoqubov was sentenced to 18 years in jail for membership in a banned Islamist group, Hizb ut-Tahrir.
The family says Yoqubov also suffered from tuberculosis he contracted in jail.