[3] He was among the early members of a group along with Abdullah Öcalan, Haki Karer, Mazlum Doğan and Cemîl Bayik which held regular ideological meetings from 1973 onwards and which would later become known as the "Kurdistan Revolutionaries".

[6] He returned to Germany, where he was arrested in 1988[7] and during the Kurdish Trial in Düsseldorf, he was accused of being a member of a so-called revolutionary court in Barelias, Lebanon, which sentenced two people to death.

[10] He was released immediately due to his years in pre-trial detention together with Duran Kalkan, who was also charged with being a member of a terrorist organization.

[15] Kaytan was considered a potential successor to Abdullah Öcalan, the imprisoned leader of the PKK, making his death a significant event within the organization.

[16] His passing has led to further scrutiny of the PKK's internal leadership and the operations conducted by Turkish forces in the region.