A SADIST filmed himself torturing his lover during a horror rape and murder bid ordeal.

Kevin Oliver made the 47 year-old suffer for hours at her home in Troon last October.

The mum feared she was going to die as the bodybuilder battered, abused and humiliated her.

Gloating Oliver, 31, captured what he was doing on his mobile phone.

Footage from the harrowing incident – too graphic to explain in detail – was played to jurors at the High Court in Glasgow.

One detective told how she had never witnessed anything like it in her 15-year career.

Oliver even continued to hound his victim while on remand in prison.

He denied the accusations, forcing the woman to relive what happened.

She sobbed: “He told me he was going to teach me a lesson.”

Oliver could now face a life sentence after he was convicted of assault, rape and attempted murder.

He was also found guilty of sexually assaulting a second woman.

It emerged the thug already had a bad record for violence including several jail-terms.

Oliver smirked as he was led handcuffed to the cells. He will return to the dock in December.

The rape victim told how she initially felt “sorry” for Oliver before dating in 2017.

She held down a good job as a support worker while he was unemployed and lived in a run-down part of Ayrshire.

The woman said Oliver then “basically moved in without my consent”.

Jurors heard he was a man who made a Google search for “most violent brutal torture porn”.

She soon suffered at his bullying hands and he became “obsessive”, demanding to know where she was.

The woman told jurors: “It felt like he was just taking over my life. I felt like I was walking on eggshells.

“I did not want to come home from work as I did not know what mood he would be in.”

In June last year, the woman had to beg Oliver to meet a friend.

He only agreed if she went to the same pub as him – and that she had to wear a cardigan to cover bruises he caused.

Oliver sneered at her: “Don't show me up.”

They later returned to the mum's home where the thug flew into a “jealous rage”.

The woman recalled: “He put me in a headlock. I thought he was going to snap my neck.”

She eventually passed out – but when she woke Oliver grabbed her face so hard, he dislocated her jaw.

The victim managed to escape and dialled 999 at a nearby phone box.

Despite what happened, the woman was back in contact with Oliver in October 2018.

The pair went out in Glasgow before returning to her home.

When the woman then refused to have a gin with Oliver, he put her through a horrific ordeal.

The sobbing victim recalled: “He was on top of me and he stripped me. I was telling him to stop.

“He was saying: 'I am going to teach you a lesson. You are my property'. He said he was going to torture me.”

Prosecutor Bill McVicar asked the witness: “How long did this go on for?”

She replied: “Hours.”

The terrified woman was physically assaulted, raped and tied up.

She told Mr McVicar: “He repeated all the things that he did in each room of the house. I just thought that I was going to die.”

Oliver also dragged the screaming victim into the bath.

She said: “He was pushing my face in the water...in and out. He was trying to drown me.”

The woman was dumped in a cupboard for being “disobedient”.

Mr McVicar asked did she recall Oliver filming what he was doing.

She replied: “I believe he did. He was taking pictures and videos.”

Clips were played during the trial showing the battered woman being forced to carry out a number of degrading acts.

Detective Sergeant Claire Jack was one of the officers who later viewed the footage His QC Iain McSporran asked her: “Have you ever seen anything quite like that?”

She replied: “Not in relation to another adult, no.”

The court heard the victim managed to sneak out after Oliver fell asleep.

But, even after he was held on remand, he continued to contact her.

She told him: “I am petrified of you. I don't want to see you again. Leave me alone.”

Oliver was also convicted of causing the victim fear and alarm with the prison letters and phone calls.

He had earlier sexually assaulted a second woman at his then home in September 2017.

Lord Armstrong ordered a full risk assessment be carried out on Oliver.

This could eventually lead to an Order for Lifelong Restriction being imposed.