Company boss ‘knifed ex-girlfriend and filmed her as she lay dying’

A jealous company boss stabbed his ex-girlfiend and photographed her as she lay dying,  a court heard.

Ukrainian Yurii Muzyka, 34, knifed 29-year-old Halyna Hoisan – known as Lina – at her apartment in Tyler Street, Greenwich, on 27 August last year.

Muzyka, who was allowed entry to the block of flats by a neighbour, found Ms Hoisan with Yanis Djebli, who she was dating.

He stabbed Ms Hoisan six times to the chest before taking photographs of her in a pool of blood and stabbing himself in the stomach.

He denies murdering Ms Hoisan, who was also originally from Ukraine.

Prosecutor Jacob Hallam, KC, said: ‘On the evening of 27 August 2025 Yurii Muzyka, travelled to a flat in Greenwich, armed with a knife.

‘It was where Halyna Hoisan lived. Ms Hoisan was Mr Muzyka’s ex-partner.

‘Mr Muzyka forced his way into Ms Hoisan’s flat, and then attacked her.

‘A man called Yanis Djebli, who was with Halyna, tried to help and then ran to call the police when the defendant began to stabbing her as she lay on the floor.

‘The defendant stabbed Halyna Hoisan to death, took photos of her as she lay in a growing pool of her own blood, and then stabbed himself in the stomach.

‘The medical services, the first of whom arrived in response to Yanis Djebli’s call, they could not heal the many wounds the defendant had caused to Halyna, and she was pronounced dead at the scene.

‘But they could heal the single wound the defendant inflicted on himself. And so he can be tried by you for her murder.’

Mr Hallam said the couple had been in a ‘turbulent’ relationship.

She made allegations against Muzyka for violence and stalking while he made counter-claims against her to police, the court heard.

Ms Hoisan gained a non-molestation order against Muzyka last August after he made threats to kill, it was said.

Ms Hosain went on a first date with Mr Djebli on 25 August and they went for a walk in Greenwich.

Two days later, at 4.53pm, Muzyka bought a knife from Lakeland in Kingston, jurors heard.

In a video found on his phone, he said: ‘Hello Mum. Probably I am filming my last video, because I can’t do it anymore.

‘She sleeps around, she goes God knows where, f–ks around, drinks until morning.

‘She’s just a f–king whore… she hurt me very badly. She’s just a b–ch.’.

Mr Djebli said Muzyka looked like he was ‘on a mission’ as he stabbed Ms Hoisan while she lay on the floor in the foetal position.

‘Yanis Djebli ran from the flat,’ said Mr Hallam.

‘On the ground floor he saw two females and told them to get out and to call the police. They did so, and he and they spoke to the police, telling them that someone was being attacked with a knife in the flat.’

In hospital Muzyka wrote on a whiteboard ‘I can’t believe my partner have sex with another boy’, the court heard.

Muzyka, of Burlington Road, New Malden, denies murder.

The trial continues.