In the early morning of December 4, Graham picked up Jones in Zamora's car, while she hid in the hatchback.
They went to a remote location and got into a struggle.
Zamora hit Jones over the head with weights, and Graham shot her twice after she broke away from them.
Following the murder, Graham was at the Air Force Academy in Colorado Springs, Colorado, while Zamora was at the Naval Academy in Annapolis, Maryland.
Zamora confessed the crime to her roommates, which ultimately led to notification of the local police in Texas.
Both Zamora and Graham were arrested on September 6, 1996.
There were separate trials, which resulted in guilty verdicts.
Zamora and Graham are serving life sentences for the murder.
Zamora's attorney filed an appeal in 2005, stating that prosecution withheld the information that Graham did not give Jones a ride after the meet, and probably did not have sex with Jones.