Sgt. 1st Class Layne Morris said after the 2002 firefight in which his right eye was blinded that Omar Khadr hid inside a compound waiting for U.S. troops to come inside. Khadr, then 15, is accused of tossing a grenade that killed medic Christopher James Speer.

Morris and Speer's widow, Tabitha, sued for damages last year after Morris saw the American public television show "Frontline" in which a family member defended Khadr's actions and said the death of a U.S. soldier was "no big deal."

This week, U.S. District Judge Paul Cassell in Salt Lake City told the plaintiffs to submit evidence that establishes the amount of damages they expect.

"This is my way of continuing the war against terrorism," said Morris, the housing director for West Valley City. "And hopefully there will be money for Christopher Speer's widow and their two young children."

Omar Khadr is being held at Guantanamo Bay, Cuba, over protests of the Canadian government that he is a juvenile.

Morris' lawsuit sought damages from the accused boy's father, Ahmad Sa'id Khadr, who purportedly collected from an Islamic front charity to run an al-Qaida training camp in Afghanistan. The legal action was based on the argument that a parent has a duty to control a minor child to prevent him from intentionally harming others.

Morris' attorney, Donald Winder, said he will seek money from funds frozen by the U.S. and Canadian governments and the United Nations. The elder Khadr is believed to have been killed in a gunbattle in Pakistan.

His widow returned to Canada to seek treatment for their youngest son, Karim Khadr, for wounds he received fighting with al-Qaida in the same firefight that killed his father.

In April, Cassell issued an order allowing Morris to publicize the legal action in Toronto, where the Khadr family lives, after their attorney refused to accept a copy of the lawsuit.