The father of a slain soldier today urged an Iraqi judge to fully prosecute the insurgent who killed his son.

Sgt. Matt Maupin was kidnapped after Iraqi insurgents ambushed his fuel convoy in 2004. Today, his 63-year-old father Keith Maupin asked a judge to punish his son’s killer to the fullest extent.

The Iraqi insurgent, who confessed to killing Maupin with a sniper, had previously been sentenced to death. However, there was a problem with paperwork, and the trial has started all over again.

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After Maupin was kidnapped, video showed him sitting on a floor surrounded by masked gunmen. His family held out hope that he was still alive, but his remains were found in Baghdad in 2008.

"I made it clear to the judge that I feel this guy needs to be held accountable under Iraqi law," Maupin said. "If Matt's death can benefit the Iraqi people by ensuring a strong justice system, it will be worth it even though he is gone."

Watch Trace Gallagher’s report above.

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