An anonymous caller contacted a Swedish newspaper the day after the crash, claiming responsibility for the bomb and saying that his group had intended to damage Yugoslav tourism rather than cause mass casualties. The caller identified himself as being affiliated with Croatian nationalist forces. This call was noted by investigators but was never traced to an identified individual.
No arrests were ever made. No individual was ever formally charged or convicted in connection with the bombing of Flight 367 in the five decades following the event.
In 2024, a Swedish television documentary — part of a series called “Hard Facts” broadcast on TV4 — revisited the case with new investigative reporting. The journalist Tonci Percan, who had spent approximately twenty years investigating the case, presented material from Yugoslav State Security Service archives that had not been publicly disclosed. The documentary named seven exiled Croats linked to Croatian nationalist organizations — the Croatian National Resistance and the Croatian Revolutionary Brotherhood — as people whom Yugoslav security services had considered responsible for the bombing. Among the figures named was Josip Šenić, identified as a leader of the Croatian Revolutionary Brotherhood. Two of the surviving people named denied any involvement; a third said he could not remember.
The documentary’s findings represent investigative journalism based on archival material rather than formal legal adjudication. The distinction between “named in UDBA documents as a suspected perpetrator” and “proven responsible by judicial process” is significant. The Yugoslav state security service that produced those documents had its own interests and its own methods; its conclusions were not the same as evidence established in a court of law. The families of those who died in the crash, represented in the documentary by a woman who lost her mother and two brothers, have been waiting for fifty years for something approaching a definitive accounting.