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The Defense Department is saying little.

“We are reviewing the request,” spokeswoman Eileen Lainez said in a brief email Monday.

Mr. Hunter said the request is now before Defense Secretary Leon E. Panetta.

Among the new evidence in front of him is a review conducted by Peralta’s backers in which specialists concluded that the body-armor damage was consistent with a grenade blast, and a nationally renowned gunshot-wound specialist who reviewed the autopsy information and said it’s likely that Peralta was alive and cognizant enough to have swept the grenade beneath him.

Mr. Reynolds, the former lance corporal who is now a corrections officer in Washington state said there is no difference between Peralta’s case and that of Marine Cpl. Jason Dunham, who was awarded the Medal of Honor for covering a grenade to protect his comrades.

Dunham died in the blast.

President George W. Bush awarded that medal posthumously, making Dunham the first Marine since the Vietnam War to earn the military’s highest honor.

Peralta’s combat comrades have rallied around his memory.

Mr. Sebby helped breathe new life into the Medal of Honor push after he saw a news report several years ago that talked about a snippet of combat video from the incident. Mr. Sebby said he knew he had filed more video than that, and even remembered the identification number to help find it in the archives.

Mr. Sebby captured everything leading up to and after the firefight on his Sony PD-150 handheld camera, though he didn’t tape the grenade attack itself — “I wasn’t going to be holding a camera when I could be holding a rifle,” he told The Times.

His video included the platoon dragging Peralta out of the house, and he said the injuries visible on his body back up the Marines’ accounts. That video is also among the new evidence Peralta’s backers have asked the defense secretary to review.

Mr. Sebby, who works for a music booking agency, Carmel Music and Entertainment, said that last week, on the eighth anniversary of the firefight, that some of those involved in the fight took to Facebook to commemorate Peralta once again.

“He saved some lives that day, and those people are still remembering,” said Mr. Sebby who, like Mr. Reynolds, says he is alive today because of Peralta. “There are a lot of us continuing our lives and remembering there’s a guy behind that allows us to do what we’re doing now.”