He described how when he saw her at school on Saturday April 8, suddenly a feeling came over him.
“Just that I had to kill her. I wasn't angry or anything. Basically emotionless," he said.
As Ms Scott prepared to leave to head off to celebrate Easter with her family before getting married later that week, Stanford grabbed her from behind and dragged her into a storeroom.
“I have had anger attacks in the past; I have been treated for that. I think I needed to see a psychiatrist,” Stanford told police as he outline how he then raped her and killed her.
Punching her between 30 and 40 times, he then stabbed her in the neck to ensure she was dead.
He cleaned up the blood with a high-pressure hose before driving 70km to dump her body in the Cocoparra National Park where he doused her body with petrol and set her alight.
The court also heard how in the weeks before her murder, Stanford had searched the internet for “bride rape” and “bride killing”.
“The search histories from the offender’s phone and computer reveal the offender very regularly searched in relation to violent rape, violent sex, hardcore porn, and murder,” the agreed statement of facts states according to SMH.
“He also conducts searches in relation to necrophilia and ‘necro rape’.”
The day before the murder he purchased a knife and handcuffs, and attempted to buy leg-cuffs. The items were found by police after his arrest.
Standford’s sentence is expected to be handed down on Thursday.