In October and November 2005, the
United States Army held an
Article 32 hearing, similar to a
grand jury hearing, in Kuwait rather than Tikrit, in order to allow the wives of Martinez, Esposito and Allen to attend; all three did. In addition, the Army arranged for transmission of an audio link of the two-day proceedings to West Point to allow other family members in the U.S. to follow them. In early 2006, Martinez learned of additional evidence against him. This included testimony from a soldier who said she had given Claymore mines and grenades to Martinez shortly before the killings. On April 3, 2006, he
volunteered to plead guilty to murder in exchange for a
life sentence with the possibility of
parole after ten years.
Lieutenant General John Vines, commander of the
XVIII Airborne Corps and
convening authority over the legal proceedings, rejected the plea agreement. Vines sent the case to court-martial under two counts of premeditated murder, Article 118 of the
Uniform Code of Military Justice. In April 2007, the
defense asked for more time to prepare its case and presented the judge with four
motions. In addition to the charges of premeditated murder, Martinez was charged with one count each of wrongful possession of a privately owned firearm, unexploded ordnance, and alcohol, as well as wrongfully giving government property in this case printers and copiers to an Iraqi national. One of the defense motions was to sever the murder charges from the others. The case was scheduled to go to trial in August 2007. In August 2008, the defense asked the judge to dismiss the murder charges because of what they alleged was the
prosecutor trying to influence a witness who could help the defense. The judge refused the request. The court-martial was held at
Fort Bragg,
North Carolina, beginning in October 2008, with Colonel Stephen Henley sitting as the trial judge. During the trial, Sergeant Sandra Pelton, a 42nd Division cook, testified for the prosecution that Martinez twice mentioned
fragging when he came through her dining facility a few days before the explosion. On one occasion when Pelton asked Martinez how he was doing, he made a noise simulating an explosion and said, "Frag him, frag. I mean it." Approximately twenty other soldiers and officers testified that they had heard Martinez threaten or insult Esposito. Martinez's defense team countered that the Army's evidence against Martinez was
circumstantial, and prosecution witnesses' testimonies were inconsistent. The defense team also presented evidence that Martinez was not the only soldier in the unit with a grudge against Esposito. After two days of deliberations, the jury
acquitted Martinez on December 4, 2008. In the military, at the time, a two-thirds vote by the jury was needed for conviction. The prosecutor in the case speculated that some jurors' known opposition to the
death penalty may have influenced their votes for acquittal. ==Acquittal and honorable discharge==