The family of slain Saudi journalist Jamal Khashoggi said Friday they have forgiven those who killed their father.
"His ambush and heinous murder does not have a statute of limitations", Cengiz said on Twitter.
Khashoggi - a royal family insider turned critic - was killed and dismembered at the kingdom's consulate in Istanbul on October 2, 2018, in a case that triggered worldwide outrage.
Saudi Arabia has long denied that assertion saying the death resulted from a brawl. This account has been doubted globally.
After initially offering shifting accounts of what transpired, and under intense global and Turkish pressure, Saudi prosecutors eventually settled on the explanation that Khashoggi had been killed by Saudi agents in an operation masterminded by two of the crown prince's top aides at the time.
Karen Attiah, editor at The Washington Post for which Khashoggi wrote columns, said his sons had "surrendered and allowed the murderers of their father to go free".
His family's pardon is expected to spare the lives of five unnamed people sentenced to death over the murder in a December court ruling, which was lambasted by human rights groups after two top aides to the crown prince were exonerated.
On Friday, Agnes Callamard, the United Nations rapporteur for extrajudicial executions, said the "shocking" decision by Khashoggi's sons to "forgive" their father's killers was just another step in Saudi Arabia's "parody of justice".
What has Khashoggi's fiancée said?
Khashoggi had been at the consulate to collect paperwork relating to his planned marriage to Cengiz, a Turkish citizen. This would be in line with the public stance adopted by his son, Salah, who was filmed accepting the condolences of Crown Prince Mohammed bin Salman, the man suspected by many of being personally behind the killing.
Salah Khashoggi and his three siblings still live in Saudi Arabia.
She accused them of engaging in "obstruction of justice". None of this is likely to receive much attention in the media in Saudi Arabia, a country now hit by the twin blows of coronavirus and collapsing oil revenues.
The son of murdered Washington Post columnist, Jamal Khashoggi, has released a statement "forgiving" his killers. "Therefore, we the sons of the Martyr Jamal Khashoggi announce that we pardon those who killed our father, seeking reward [from] God almighty".
Saudi Arabia still enforces classical Islamic law that a murder victim's family can reconcile with the murderer if blood money, called diya, is paid.
"We affirm our confidence in the Saudi judiciary at all levels", Salah Khashoggi said at the time, describing the trial as a "fair" one.
Salah, Khashoggi's eldest son, was the only sibling who meant to carry on living in Saudi Arabia, the newspaper said.
Khashoggi - a royal family insider turned critic - was killed and dismembered at the kingdom's consulate in Istanbul in October 2018, in a case that tarnished the reputation of de facto ruler Crown Prince Mohammed bin Salman.
"There was never closure of the case since the body was never found", she said.