Zamora hit Jones over the head with weights, and Graham shot her twice after she had broken away from them.
Following the murder, Graham was at the Air Force Academy in Colorado Springs and Zamora enrolled in the Naval Academy in Annapolis.
Zamora confessed the crime to her roommates at the academy, which ultimately led to the notification of the local police in Texas.
Both Zamora and Graham were arrested on September 6, 1996.
Graham and Zamora met at a Civil Air Patrol meeting at Spinks Airport, nearly Crowley, Texas, when they were 14-year-olds.
Zamora said she wanted to be an astronaut and Graham wanted to be a pilot.
They began dating about four years later, in August 1995, when they were both high school honor students. She had plans to attend Texas A&M University and was interested in becoming a behavioral analyst.
Graham went to school with Adrianne Jones, who was on the cross-country track team with him. Her family included her mother, Linda; During her confession to police, Zamora said that she believed it was this night when Graham came over to her house, carrying a stuffed animal and having "this look in his eyes that was horrible, he looked so scared.") In Zamora's confession, she said that about a month later she questioned Graham about other girls, including Jones.
They went to a remote location, got into a struggle.Zamora believed Jones to be a romantic rival for Graham; he had claimed that he had given her a ride home on November 4, 1995 and had sex with her.Zamora became enraged and asked Graham to kill her.Zamora said in her confession that they arrived at a spot by the lake after a.m. She said that when Graham stopped the car, she came out from the hatchback and asked Jones if she had sex with Graham.She claimed Jones said that she had, but didn't enjoy it because she felt guilty. Zamora and Graham both said in their confessions that they got into a struggle, Zamora hit Jones on the head with the weights, and Jones fought back. Graham shot her twice with a 9mm handgun after she fell down.