A 42-year-old man who abducted a woman and her four-year-old son and repeatedly raped her has been sentenced to 15 years in jail.

Michael Murray, formerly of Killiney Oaks, Killiney, Dublin and previously with an address at Devonshire Street, Cork City, lured his victim to an apartment by pretending someone was dying.

He threatened to kill the four-year-old and later abandoned the child on a Dublin city centre street before returning to subject the woman further assaults lasting hours.

At the Central Criminal Court, Mr Justice Patrick McCarthy imposed four concurrent 15-year sentences for rape offences, ten years for attempted rape and six-year sentences for child abduction and theft.

The judge said the rape offences were at the most serious end of the scale.

Murray had pleaded not guilty at the Central Criminal Court to rape, attempted rape and aggravated sexual assault between 12-13 February 2010 in a Dublin city apartment.

He also denied child abduction, threats to kill or cause serious harm, false imprisonment, stealing a bank card and stealing cash from two ATMs. 

He was found guilty on all counts by a unanimous jury decision last July.

The judge said there were no mitigating factors and there was no basis for saying Murray might be rehabilitated in the near future.

He said the sentence could not be any less than 15 years.

During the ordeal the woman was bound, gagged and repeatedly raped.

The woman, a foreign national living here, was collecting her son from playschool when Murray coaxed her into an apartment by telling her that somebody was dying inside and needed her help.

He then tied her up and gagged her, drove her son away and left him in a public square in the middle of the night before returning to attack and repeatedly rape the victim.

After hearing the details of the offences and the victim impact report, Mr Justice Patrick McCarthy adjourned sentencing until today.

Detective Garda Michel Donlan previously told the judge Murray's 20 previous convictions include aggravated burglary, burglary, robbery and possession of firearms.

In her victim impact report the woman, who is living here with her family, said: "I used to always think people in Ireland were good. Now I don't know anymore."