Ahmet Benler was the son of Özdemir Benler, the Turkish ambassador to Netherlands. He was assassinated on October 12, 1979. His assassination was claimed separately by ASALA

Armenian Secret Army for the Liberation of Armenia

The Armenian Secret Army for the Liberation of Armenia or ASALA was an Armenian nationalist militant organization, that operated from 1975 to 1986. The group also operated under other names such as The Orly Group and the 3 October Organization...

 and JCAG

Capture and trial of the alleged assassin

His alleged assassin Mustafa Hassan Ammar, as his Lebanese passport stated, was returned to Netherlands for the trial. However, he was discharged on the ground of insufficient evidence after a 7 hour hearing.