Klay Holland, 32, faced the Supreme Court of Victoria on Tuesday when he was sentenced to eight years’ imprisonment, with a non-parole period of four years and 10 months.
He had asked for money and drugs, and was allegedly linked to others who had gone to the home to stand over a resident.
Cox, 36, who was high on methylamphetamine, was overpowered by Holland who was a guest at the home.
Cox was beaten with a baseball bat and was incapacitated on the floor, where Holland then raped him.
His body was found at the scene under a pile of blankets a day later by police, who arrived at the property on an unrelated matter.
He was hogtied, his mouth was duct taped and his pants were pulled down to his upper thighs.
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In March, a jury convicted Holland of one charge of rape, but he was found not guilty of manslaughter.
Justice Christopher Beale described Holland’s offending as premeditated and particularly humiliating.
“Your rape of Mr Cox was a callous, degrading and humiliating act of retribution,” Justice Beale said.
Holland’s mental impairment, time in prison during the pandemic and separation from his three young children were all taken into consideration for sentencing.
Support is available from the National Sexual Assault, Domestic Family Violence Counselling Service at 1800RESPECT (1800 737 732).