Isabella Martin died after receiving catastrophic head injuries at the hands of her father. (Supplied: gofundme)
A fatigued Perth father who murdered his baby daughter by shaking her and throwing her to the ground because she would not stop crying has been sentenced to life in jail.
Arron Colin Martin was found guilty by a Supreme Court jury of murdering six-month-old Isabella Martin, who suffered catastrophic brain injuries at the family’s Brookdale home in November 2017.
The Supreme Court was told Martin snapped when the child would not settle.
After the assault the baby was still breathing and he put her back into her cot, but instead of getting help he tried to kill himself.
When that failed he went to Armadale police station, where he told officers he had “hurt his child”.
Father said he was ‘tired and fatigued’
At the time, Martin was working overnight as a baker at a local supermarket before going home and looking after his daughter during the day while his wife worked at a fast food outlet.
He testified at his trial that in the lead up to the baby’s death, he was getting only about three or four hours’ sleep a night and described himself as being tired and fatigued.
He maintained he loved his daughter and had not meant to hurt her.
Arron Martin told the court he adored his daughter and had not intended to harm her. (Supplied: gofundme)
Martin has been in custody since he was arrested on the night of the baby’s death.
He will have to serve at least 12 years before he can be considered for release.
The sentence was backdated until his arrest on November 9, 2017.