A father who pushed his two children over a hotel balcony before jumping after them did unlawfully kill his six-year-old son, a coroner ruled.
He and Mia survived with broken bones but tragic Liam died from head injuries after the death plunge in Crete in 2006.
A coroner originally ruled Liam's death unlawful but this was overturned by the High Court because evidence suggesting Hogan was insane at the time of the killing was ignored.
But a second inquest this week heard bombshell new testimony from a British forensic psychiatrist who claimed the father would not have been insane when he jumped.
Avon Coroner Maria Voisin yesterday backed the original decision into little Liam's death, ruling that Hogan was not insane and had unlawfully killed the schoolboy
It raises the possibility that Hogan could face criminal charges in Britain, where he is currently sectioned in a mental hospital
The inquest heard how John Hogan angrily screamed 'do you think I'm from a family of death?' at wife Natasha - moments before his balcony plunge.
Hogan, who has two brothers who committed suicide
, had been arguing with his wife about her decision to move in with her mum when they returned from holiday.
He said he could not remember hurling his kids over ledge.
Hogan was arrested but cleared of murder by a Greek court in January 2008 - after being deemed 'mentally incapable' of understanding his actions.
Two months later Avon Coroner Paul Forrest ruled the death of Liam was unlawful, after hearing the new eyewitness evidence at a two-day inquest.
But a High Court challenge saw the decision overturned in May 2009 - triggering the second inquest.
It was claimed that psychiatric evidence from Professor Yannis Nesteros and Dr Markos Skondras had not been taken into account.
Both Greek experts concluded that Hogan was mentally incapable of understanding his actions and had exploded during a psychotic episode.
But the new inquest, held over two days at Avon Coroner's Court in Flax Bourton, near Bristol, heard devastating evidence from forensic psychiatrist Dr Akintundi Akinkummi.
He said: 'I can find no previous evidence that satisfied me that he was suffering from any such defect of reasoning and that any such defect was caused by disease of the mind.
'I could not find any evidence that he did not know the quality of his act - in that it was likely to have caused serious injury.
'I conclude from my examination of the documentation I am satisfied that I do not believe that Mr Hogan can properly be described as having a defect of reasoning arising from disease of the mind.'
Hogan's mother Josephine, 70, was in court to hear the coroner's verdict, but his former partner Natasha, who has since emigrated to Australia with her new husband and Mia, did not attend.
The dad could not give evidence or attend the second inquest into his young son's death - because he has now been sectioned.
He had been staying as a voluntary patient at the £35million Callington Road Hospital in Brislington, Bristol.