Did The Army Cover Up Tillman's Death?

(CBS/AP)  A new inquiry into the fatal shooting of Army Cpl. Pat Tillman, a former pro football player, during combat in Afghanistan will examine possible criminal negligence by fellow soldiers in the friendly fire incident, Pentagon officials say.

Marine Gen. Peter Pace, chairman of the Joint Chiefs of Staff, said Sunday that while there is no evidence yet of a crime involving Tillman's death, investigators will want to find out if any soldiers were "firing a weapon when they should not have been."

"It does look like there were some major gaps in the earlier investigations, which were not criminal investigations incidentally,"

Eugene Fidell

, president of the National Institute of Military Justice, tells The Early Show co-anchor Rene Syler.

"General Pace indicated that apparently the earlier investigations had not looked into whether negligent homicide had occurred, and that is exactly the first place that you would look in a case like this," Fidell says. "It's quite baffling that it took this long to focus on that question."

The criminal investigation demanded by Defense Department's inspector general could have a wide range of conclusions from a finding that warrants no further action or a written reprimand to a military court martial on charges of negligent homicide.

For the Tillman family, the fifth formal probe into the shooting could put to rest unanswered questions about the Army Ranger's death along a canyon road near the Pakistan-Afghanistan border in April 2004.

Tillman's parents have been highly critical of the Army for its handling of questions about their son's death. Reached Saturday night by The Washington Post, Patrick Tillman Sr. remained skeptical.

"I think it's another step," Tillman said. "But if you send investigators to reinvestigate an investigation that was falsified in the first place, what do you think you're going to get?"

It also provides an opportunity to delve further into allegations by family members of a cover-up during the previous investigations, CBS News correspondent Joie Chen reports.

"The prior reviews had a certain sense of cover-ups than an honest full-fledged review," Dan Goure, a defense analyst at the research firm Lexington Institute, said Sunday. "It's essentially to raise it a notch from a standard review to a now criminal review. When you have people taking testimony under oath, it makes it harder to cover things."

The Army first reported that enemy fire killed Tillman. Later, military officials acknowledged that he had been shot during a confused confrontation between his unit and other U.S. troops. The military's handling of the case has angered the Tillman family.

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