A sex-obsessed Russian student gave a horrifying account of how he strangled his ex-girlfriend and raped her as she lay dying.

Artyom Iskhakov, 19, told Tatiana Strakhova's parents in the appalling online message how her heart was still beating, so he stabbed her and then had sex with her corpse.

He then paused to eat sandwiches, boasting that several hours later he repeated the depraved sex act.

Jealous of his 19-year-old ex-girlfriend's relationship with another man, the talented IT student wrote that his actions were 'terrible - but I did what I wanted'.

He then hanged himself moments after finishing his post by asking forgiveness from his and her parents, and telling them where to find the bodies.

Sex-obsessed Russian student Artyom Iskhakov (right) posted a sickening running commentary on social media telling how he strangled his academically brilliant flatmate Tatiana Strakhova (left) and raped her as she lay dying

Artyom Iskhakov, 19, told Tatiana Strakhova's parents in the appalling message how her heart was still beating, so he stabbed her and then had sex with her corpse. Iskhakov and Strakhova are pictured together

Jealous of his 19-year-old ex-girlfriend's (pictured) relationship with another man, the talented IT student wrote that his actions were 'terrible - but I did what I wanted'

Tatiana, an A-grade student at one of Moscow's most prestigious universities, had earlier dated Iskhakov before ending the relationship.

They continued to share a flat but she had other boyfriends, most recently a man called Igor from St Petersburg.

Iskhakov wrote that it was his obsession with wanting sex with her that drove him to kill her.

A student at elite Bauman University who also worked as a programmer, he admitted in his disturbing social media message that he 'got tired of listening to her ****ing explanations of why she doesn't want to drink with me - and seeing her flirting with my friend'.

In graphic and shocking testimony about her murder and rape, he wrote: 'She came home, I was sitting in the kitchen, she walked to her room.

Tatiana (pictured), an A-grade student at one of Moscow's most prestigious universities, had earlier dated Iskhakov before ending the relationship

Iskhakov admitted in his disturbing social media message that he 'got tired of listening to her ****ing explanations of why she doesn't want to drink with me - and seeing her flirting with my friend'. They are pictured together

Tatiana attended the prestigious Higher School of Economics at Moscow's National Research University

'I punched her in the face, she fell on the floor. I punched her a few more times, blood started coming from her mouth, and she asked me to leave.

'I didn't leave, LOL, I started strangling her. At some point she clearly passed out, but heart continued beating.

'And I decided to f*** her before she got cold. After finishing, I realised that the heart was still beating.

'I put my hands on her throat to no avail. Then I took a knife and cut her throat.

'I don't know how well I did it, but there was lots of blood. Her heart was still beating.

'Then I took the knife and stabbed her twice between ribs on the left.

'Next I ****ed her once again and decided to write this.'

Tatiana (pictured) shared a flat with Iskhakov but she had other boyfriends, most recently a man called Igor from St Petersburg

Iskhakov wrote that it was his obsession with wanting sex with Tatiana (pictured) that drove him to kill her

He continued: 'At some point I stuffed her mouth with her tights so I didn't see the blood and not to hear some strange sounds that her body was making.

He 'also strangled her throat with a rope I had bought to try shibari (Japanese bondage) with her.'

He admitted that he then went to the kitchen and 'got something to eat' - 'I'll go and make sandwiches, I will enjoy it while I can' - and slept a few hours before he had sex with her corpse 'once again'.

He wrote: 'She's so cold just like her feelings for me.'

He then wrote a message to Tatiana's parents saying he was 'ashamed', adding: 'Forgive me for taking your only child from you.

'I loved her very much. You know, at this very moment I've realised what the **** I did. I feel cold and my hands have started shaking even more.'

He admitted his disgust at having sex with Tatiana's corpse, adding: 'Now I can do nothing except kill myself.'

Iskhakov (pictured) hanged himself moments after finishing his post by asking forgiveness from his and her parents, and telling them where to find the bodies

Iskhakov asked for forgiveness from Tatiana's parents before hanging himself

He said: 'I've ruined the happiness of several people, and for what? In the end there is only one emptiness that will swallow me up.'

He claimed he was driven to kill her because of his obsession of wanting sex with her.

'I got mad because of thinking of ****ing her so much that I killed her.'

But several hours later he wrote: 'What have I turned into? Sorry. I cannot atone for my sins.

'I'll go kiss Tanya (Tatiana) on her cold forehead and prepare (for my death).

She lies there dead and cold with no moving fingers - farewell, goodnight sweet princess.'

To his own parents he admitted: 'I am a complete disappointment to you.

'There is no way back. Remember something good about me at least sometimes. I did not think that everything would end like this.'

Tatiana attended the prestigious Higher School of Economics at Moscow's National Research University.

Police are investigating the deaths.