Following Luburić 's death , the leadership of the HNO went to several of his close associates , eventually splitting into rival leaderships in North America , Australia , Sweden and Argentina . Leadership of the HNO 's Argentine faction was delegated to Luburić 's brother-in-law Dinko Šakić . In April 1971 , two HNO affiliates entered the Yugoslav embassy in Stockholm and killed Yugoslavia 's ambassador to Sweden , Vladimir Rolović . The two men were arrested , but set free the following year after a group of Croatian nationalists hijacked a Swedish domestic flight demanding their release . One of Rolović 's killers , Miro Barešić , underwent a baptism while in prison and adopted the Christian name Vjekoslav in Luburić 's honour . The HNO boasted several thousand members at its height . Notable members included Zvonko Bušić , Gojko Šušak and Mladen Naletilić , among others . Bušić masterminded the hijacking of TWA Flight 355 in September 1976 . Šušak became Croatia 's Minister of Defence in 1991 . Naletilić was convicted of committing war crimes against Bosniak civilians during the Bosnian War by the International Criminal Tribunal for the former Yugoslavia ( ICTY ) . He was sentenced to 20 years in prison
TWA Flight 355
TWA Flight 355
Vjekoslav Luburić