Bracas was arrested on the towpath in Portadown and subsequently pleaded guilty to murdering Ms Nazarova.
He also pleaded guilty to arson endangering the life of his niece and arson being reckless as to whether the life of others would be endangered.
The court also heard a portion of a victim impact statement written by Ms Nazarova’s partner who spoke of how they had planned to marry.
In his statement, he said he thinks about Ms Nazarova every day and how he wishes she could see their daughter growing up.
Both Ms Nazarova and her brother are originally from Lithuania.
During submissions a prosecution barrister outlined Bracas’ interview with police, where he told them he felt his sister treated him like garbage and made him do chores and babysit his niece.
A defence barrister said that Bracas “now accepts” his sister was “supporting him” and that she was “not to blame for anything”.
The judge described domestic violence as a “blight on society” and said the number of murders committed in domestic settings had “sky-rocked in this jurisdiction”.
The judge said she wanted time to reflect on what she has heard and would set a tariff for how long Bracas would spend in prison on 16 January 2026.