A US citizen once accused of plotting a radiological "dirty bomb" attack has been convicted on unrelated charges of offering his services to terrorists.
Jose Padilla (36) faces a possible life prison term, as do two co-defendants convicted alongside him at the Miami court.
The jury found Padilla guilty of conspiracy to murder, kidnap and maim persons abroad, conspiracy to provide material support for terrorism, and providing material support for terrorism.
Padilla was arrested in 2002 and President George W. Bush ordered him held in a military prison as an "enemy combatant."
But faced with legal challenges to the president's authority to jail a person without charge, prosecutors added Padilla to an existing terrorism support case in Miami and never charged him with any bomb plot. He was turned over to civilian authorities in 2006.
The jury also convicted co-defendants Adham Hassoun and Kifah Jayyousi on the same three charges. The judge set sentencing for December 5th.
Padilla's lawyers claimed that he was routinely subjected to harsh treatment and torture, including being forced to stand in painful stress positions, given LSD or other drugs as "truth serum," and subjected to loud noises and noxious smells.
Defence lawyers said the men contributed to legitimate charities that gave aid to Muslim victims of genocide and ethnic cleansing in Kosovo, Bosnia and Chechnya in the 1990s.