Diane Zamora
Graham had confessed to giving Adrianne a ride home and having sex with her one month earlier, leading an enraged Zamora to demand that he kill Jones.
They went to a remote location and got into a struggle, at which point Zamora hit Jones over the head with weights and Graham shot her twice after she broke away from them.
Zamora confessed the crime to her roommates, which ultimately led to notification of the local police in Texas, where the murder occurred.
Diane Zamora and David Graham met at a Civil Air Patrol meeting at Spinks Airport, near Crowley, Texas, when they were both aged 14.
Although they both continued to advance in the military, their single-minded quests for recognition covered up deep-rooted problems leading to obsession and murder.
Graham called Jones on the night of December 3, 1995, and arranged to drive her to Joe Pool Lake while Zamora hid in the hatchback of her car.
[1][4] She wrote in her calendar for the day, "Adrianne 01:38 a.m."[6] Jones' body was found in an open field on Seeton Road, near Joe Pool Lake, on December 4, 1995.
[6] Graham said that he was not guilty of killing Jones, but helped cover up the murder, which he claimed Zamora committed by herself.
Alan Patton of the Grand Prairie Police Department stated: "For those who don't remember, this was a totally brutal, unnecessary murder.
However, Graham has since admitted that his original confession was accurate and the only reason he lied about the sexual encounter not happening was because of his defense lawyer's advice.
[5][9] Zamora's two-week trial began in February 1998 in Fort Worth with Judge Joe Drago presiding.
[3] Linda Jones, Adrianne's mother, asked that the death penalty be removed as a sentencing option from both trials.
The Naval Academy Midshipmen to whom Zamora confessed and another witness stated that she showed no remorse over Jones' death.
[3] The case received national media attention, providing Court TV with some of its highest ratings ever in its film coverage of the trial.
In this case, the prosecutor believed that Jones was deceptively lured from her home by Graham asking her for a bogus date, or she would not have been in the car.
Moreover, the couple committed obstruction when Zamora allegedly ordered Graham to stalk Jones into the field and to shoot her so that she could not tell the authorities.
On February 17, 1998, after more than six hours of deliberations over two days, the jury found Zamora guilty of capital murder in the death of Adrianne Jones.
Because of the Jones family's request that prosecutors not seek the death penalty against her, Zamora received a mandatory sentence of life imprisonment and would be eligible for parole after 40 years.
"From these witnesses, the state knew, and should have known, that the testimony it sponsored in support of a sexual encounter between Jones and Graham was probably false".
Zamora's mother and a male friend stood in for the imprisoned couple in the county's first proxy marriage, which was performed by a judge in San Antonio.
She noted that she obstructed justice by cleaning the car afterwards and was an accessory after the fact; however, Zamora pointed out that the jury had convicted her of intending to kill Jones, which she denied.
Two other independent polygraph administrators, who were not at the test, were contacted by Dateline and asked to review the results; they said that they could offer no opinion due to counter-measures.
Zamora responded to Phillips that she was nervous and hyperventilating despite being told all the questions in advance and reviewing them with the administrator before the test.
