"Despite extensive treatment it is said he has made little gains and the overall treatment has been unsuccessful despite its intensity.''
The board described the murder as ``shocking'' and said Holdem was fortunate not to receive a sentence of preventive detention given he had eight previous sexual offences against young girls.
''[He] is not identified as being suitable for further rehabilitative programmes at prison,'' the decision said.
"He is described by the psychologist as having at times `ingratiating manner' in his use of flattery. He has anger issues and although he wishes to progress to self care and release to work outside the prison, this is not supported by the psychologist or the Department of Corrections.''
Furthermore, the Parole Board heard that an envelope containing images of scantily-clad females was found in his cell, which "seemed to cast doubt upon his self-report that he had no interest in sex or females or children''.
He claimed that the items must have been planted there, but the board said his explanations were unconvincing.
Holdem was previously denied parole in 2011, 2010 and 2007.
The board also notified Holdem that it was considering making a postponement order of up to three years at a hearing in three months' time.
"Mr Holdem has little community support. He is not suitable to attend further programmes outside of prison,'' the decision said.
"Given that the limited gains he has made over 27 years in prison, his prognosis is gloomy. He remains an undue risk as a high risk sexual offender and the safety of the community requires that he remain in prison.''
