The Amsterdam-based newspaper Het Parool reported the news, citing a Dutch court investigating the case as the source.
The court held its first hearing on Friday, where two Amsterdam citizens suspected of killing the 56-year-old guy named Ali Motamed in his apartment in the Dutch city of Almere in December 2015 defended themselves.
The report said Ali Motamed was in fact a new identity for Mohammad-Reza Kolahi Samadi, who is held responsible for the 1981 bombing of the headquarters of the Islamic Republic Party in Tehran.
The bombing killed 72 high-ranking politicians and party members, among them Chief Justice Ayatollah Mohammad Behesthi, who was seen as the number two figure after founder of the Islamic Republic Ayatollah Ruhollah Khomeini.
Kolahi, a member of the Mujahidin-e Khalq Organization (MKO) who was a student at the time of the terror attack, came to the Netherlands as a political refugee in the 1980s.
He started a new life in the country as an electrician and married a Dutch woman who brought him a son.
Kolahi was sentenced to death in absentia and was an internationally wanted criminal.