Isaac Costa allegedly murders fiancee Anastasia Slastion in their Greystanes, Sydney home

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EXCLUSIVE: Engineer who left Russia to seek a better life in Australia is allegedly murdered by her new fiancé in a domestic violence dispute just days after announcing their engagement

  • Woman allegedly killed in domestic violence dispute
  • Anastacia Slastion had moved from Russia to Australia

A woman who was allegedly killed by her new fiancé in a domestic violence dispute had moved from Russia to start a new life in Australia.

Anastasia Slastion, in her 30s, was found dead inside a house on Brighton Street in Greystanes, west of Sydney, at 00:50 on Saturday.

His partner, Isaac Costa, 28, was charged with murder and faced Parramatta Bail Court on Sunday, where he was denied bail.

Ms. Slastion is from Latvia but lived in Saint Petersburg, Russia before moving to Australia to work as a Senior Software Engineer at EPAM Systems.

She loved to travel and lived in Turkey before moving Down Under.

Anastasia Slastion was found dead inside a house on Brighton Street in Greystanes, west of Sydney, at 12:50am on Saturday.

His partner, Isaac Costa, has been charged with murder and will face Parramatta Bail Court on Sunday.

His partner, Isaac Costa, has been charged with murder and will face Parramatta Bail Court on Sunday.

In 2018, she posted a picturesque photo of the Sydney skyline as she began the next chapter of her life.

Five years later, she would allegedly be murdered by her partner in her home in Greystanes with her devastated family mourning the loss of their loved one in Russia and Latvia.

The house is understood to belong to Costa’s father, Clem, who is a successful landowner.

He owned several properties on the street before selling them.

After her son was denied bail on Sunday, Clem expressed her support for her son.

“We just want to say we love you and we’ll always be here for you son,” he said.

A neighbor said Costa and his partner had met their friends at a local pub four days earlier, where they introduced her as his fiancée.

“He was there four days ago introducing her to everyone as his new fiancée,” they said.

Ms. Slastion is from Latvia and had been living in Saint Petersburg, Russia, before moving to Australia to work as a Senior Software Engineer at EPAM Systems.

Ms. Slastion is from Latvia and had been living in Saint Petersburg, Russia, before moving to Australia to work as a Senior Software Engineer at EPAM Systems.

Another neighbor said they were woken up early in the morning by the sound of screaming.

“There was a lot of yelling and yelling…then the police came,” the neighbor said. The Daily Telegraph.

‘It was one of those where I was half asleep but very worried about my neighbours. It was like a screaming fit.

Costa was arrested at the property and taken to the Granville Police Station to assist police with their investigations.

He was charged with murder on Saturday after a brief interview with police.

Domestic violence advocate Sharyn Brown said 11 women had already been victims of domestic violence in 2023.