An ice addict who murdered the baby son of his girlfriend by throwing him against a wall has been imprisoned for 34 years.
Dwayne Lindsey was taking care of Chayse in the couple's apartment in Glenroy on June 24, 2016.
He claimed that Chayse was asleep on his chest when he saw a spider and that the baby fell when it shook, but has never expressed remorse for having caused the child's death.
The judge said he had seen the man get tearful but did not think it was genuine and instead was a ploy to get sympathy from the jury.
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Dwayne Lindsey was taking care of Chayse (pictured) in the couple's apartment in Glenroy on June 24, 2016
Chayse suffered serious traumatic injuries to the brain and spinal cord, marks on the neck, bruising and abrasions in the groin and retinal hemorrhage.
Lindsey has a criminal record dating back to 2002, where he was charged with assault, robbery and theft, Seven News reported.
In 2013 he held a student at knife point and demanded the child's telephone.
Lindsey's sentence could not be revealed due to a court order as she was awaiting charges for an alleged attack on another child.
Those charges, and the court order, were thrown out in a Victoria County courtroom on Friday.
Lindsey has never expressed remorse for her actions that led to Chayse's death.
Lindsey's sentence (pictured) could not be revealed due to a court order as she was awaiting charges for an alleged attack on another child.
Michelle Dearing (pictured with Chayse) said during her impact statement to the victim that she missed her son more every day
LINDSEY CRIMINAL HISTORY
2002 – Theft, robbery and assault
2011: high-speed collision that resulted in a death. Lindsey had a baby in the back seat of the car
2013 – He held a knife in the throat of a student and demanded that they hand over his phone
2015 – Accused of assaulting the daughter of another girlfriend
2016 – He killed Chayse by throwing him against the wall
The judge said he had seen the man get tearful but did not think it was genuine and instead a ploy to get sympathy from the jury.
Michelle Dearing said during her impact statement: "I miss her smile more and more every day, her cheeky smile, the way she looked at me with such love," Nine News reported.
Judge Stephen Kaye said: "These wounds carry the stamp of a fierce, brutal and disgusting attack, inflicted by you on an innocent, defenseless and harmless baby."
Lindsey was sentenced to 34 years in prison, with a probation period of 27 years.
He will serve his sentence in protective custody.