An “obsessive” lover who knifed a nurse to death when she dumped him had a wife and two children in Poland, a court heard.

Dariusz Miakienko, 47, of Lordship Lane, is on trial for the murder of Naudel Turner, 42, who was stabbed to death in Bruce Grove on March 19.

Mr Miakienko is alleged to have attacked the mother-of-two after following her from her Castle View Surgery to a bus stop in last March.

Isleworth Crown Court heard that in the weeks leading to the killing he sent her over 1,000 texts and told her: “You are killing me slowly.”

The court was told Mr Miakienko attacked the mother-of-two with a kitchen knife after she left the surgery where she worked, then laid it on her chest and rolled a cigarette.

The couple had lived together but split up in 2013. Mr Miakienko grew jealous when she began a new relationship with Kevin McDonald.

Mr Miakienko's sister Danuta Serdakowska revealed he had a wife and two children in Poland.

Jurors heard Ms Turner wanted Mr Miakienko to divorce his wife and had once threatened: “Choose me or them."

Ms Serdakowska, from Walthamstow, said the couple had been “happy” together and claimed her brother loved Ms Turner “too much” to be violent towards her.

Giving evidence, she said: “She wouldn't pick up when he called and she said she would not be with him any longer.

"It affected him very badly. He would call me crying and was down in the dumps - on two occasions he ended up in hospital and at least one of them was a psychiatric hospital.

“He said he loved Naudel very much and he could not manage living without her and told me 'I do not know how I feel, you cannot understand it'.

“It was pretty rocky after she said she didn't want to see him any more and wouldn't be with him.”

Witness Sibel Ocak described the attack.

Ms Ocak said Turner was “making gestures” with her hands and “constantly shouting” and tried to slap Mr Miakienko but he moved out of the way.

She said: “The woman was telling the man 'Leave me alone, leave me alone' but he was very calm.

“He was talking to her in a very calm manner and trying to explain something. I thought 'They must be lovers and he is trying to make peace with her for whatever he has done to her.

“So they walked up a little bit more to where the incident took place, then the man cuddled the woman and I thought he was making peace with her.

“Then his hands were moving around and his arms were around her body and I could not really see.  The woman was screaming like he was slapping her or something and I could hear some vehicles sounding their horns.”

She said Miakienko stayed nearby and appeared calm as he placed “something” on the woman's body and rolled some tobacco.

Ms Ocak said she thought the woman had fainted until a cyclist said Ms Turner had been stabbed in the neck.

Mr Miakienko denies murder. The trial continues.