The Department of Corrections on Thursday confirmed that it has not granted parole to a former army sergeant who is serving a 33-year sentence for murder.
The department said Polkrit Wiset has not shown any remorse for his actions.
"Polkrit has shown no remorse for his actions, and he has yet to compensate the victim's relatives," the department said.
Polkrit was not granted parole because authorities are concerned that he may pose a risk to the safety of the victim's relatives, so he will have to serve his sentence as ordered by the court.
The 2014 murder case attracted public attention once again after the victim's mother, Patcharee Punthong, urged the Justice Ministry to review the terms of Polkrit's parole.
She appealed to the ministry after finding out that Polkrit was eligible to apply for parole, despite having only served four years and six months of his 33-year and 11-month sentence for the murder.
In 2017, Polkrit was arrested in Nakhon Ratchasima for the abduction and murder of Ploynarin Palipol, three years after she went missing.
The head of the Crime Victims Assistance Club said he suspected irregularities as Polkrit received a number of sentence reductions even before the case was finalised.
Polkrit's sentence was reduced to nine years in jail last year, he said.