Ricardo Dasilva jailed for 18 years over murder of maths teacher Amanda Carter

Ricardo Dasilva.

Ricardo Dasilva.

In the lead up to her death, maths teacher Amanda Carter, 46, told a friend that her ex-fiance had "gone past the non-accepting stage and is entering the angry stage".

She also told family and friends of how he stalked her and would arrive at her house unannounced.

And then one night in May 2010 real estate agent Ricardo Francis Herman Dasilva, 66, crept into her bedroom at her Woongarrah home on the state's central coast.

As she lay in bed, Dasilva bludgeoned her to death - to the point where she was unrecognisable. He then tried to burn the house down with her body inside.

Amanda Carter was found "unrecognisable" from head injuries.

Amanda Carter was found "unrecognisable" from head injuries.

On Tuesday, Dasilva was sentenced to a minimum 18 years in jail for the murder of Ms Carter, a mother of three.

He will be eligible for parole in November 2031.

With his hair pulled back in neat ponytail, Dasilva stood apparently emotionless as Justice Ian Harrison read out the sentence.

During his sentencing remarks Justice Harrison said Ms Carter had been "subjected to a ferocious and sustained attack".

Justice Harrison said the murder was "brutal, premeditated and senseless".

The sentencing of Dasilva comes after a jury found him guilty in June this year following a six-week trial in Newcastle Supreme Court.

Although the case against Dasilva was circumstantial, with no murder weapon, no relevant DNA or eye witnesses to the murder.

Dasilva, continues to maintain his innocence and has already lodged a notice of intention to appeal his conviction.

He claims he fell asleep watching television on the night of the murder. 

Ms Carter's youngest daughter, Jamie Carter, was the one who discovered her mother's body.

She and her brother Shaun wrote a victim impact statement which was tendered to the NSW Supreme Court in which they described Ms Carter as a caring and warm mother who loved playing soccer and had always wanted to be called "grandmamma".

"Mum will also miss being able to form a bond and watch her grandchildren grow and will miss being a grandmamma," the statement said.

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