Amman, Jordan ? The U.S. military announced Monday it arrested and later released an Iraqi whose name matches that of one of the Amman hotel suicide bombers, saying there was no “compelling evidence” that he posed a security threat.

The American military command could not confirm whether the man it arrested last year, identified as Safaa Mohammed Ali, was among the three al-Qaida in Iraq militants who carried out the attacks Wednesday on the Radisson SAS, Grand Hyatt and Days Inn hotels. The blasts killed 57 other people.

The statement came as Jordanians voiced anger and joy at the capture and riveting televised confession of a would-be fourth Iraqi bomber, wife of one of the suicide attackers.

Many even doubted Sajida Mubarak Atrous al-Rishawi, 35, had anything to do with bombing the Radisson wedding party, saying her version of events contradicted accounts given by Jordanian authorities.

The questioning of al-Rishawi was going slowly, apparently because she was suffering from the shock of the attacks and her arrest, a security official said.

But police believe al-Rishawi, from the volatile western Iraqi city of Ramadi, may provide vital clues to al-Qaida in Iraq and possibly the whereabouts of its fugitive Jordanian-born leader, Abu Musab al-Zarqawi.

Jordanian officials say al-Rishawi has provided no motive for her involvement. She said in her televised confession that her husband brought her to Jordan and equipped her with a 22-pound explosives belt.

Details have emerged about al-Rishawi’s family, including her late brother, Thamer, who was a wanted al-Qaida member in Iraq, and their escape to the one-time insurgent safe haven of Fallujah to avoid being captured by the U.S. military.

The family stayed in Fallujah until shortly before U.S. troops overran the city in November 2004. During this time, the military rounded up hundreds of Iraqis, including a man identified as Safaa Mohammed Ali.

Ali was detained locally and was released after two weeks because there was no “compelling evidence to continue to hold him” as a threat to Iraq’s security, said the U.S. command in Baghdad.

The military said it did not know if this man was the same Safaa Mohammed Ali who Jordanian authorities say drove with the three other Iraqis into Jordan on Nov. 5. Four days later, they attacked the hotels.