A father who threw his two children off a hotel balcony, killing his son, is going to the High Court to challenge an inquest verdict.
Former tiler John Hogan is seeking to overturn Avon coroner Paul Forrest's ruling that six-year-old Liam was "unlawfully killed".
Hogan, 34, of Bradley Stoke, near Bristol, pushed Liam and his two-year-old sister, Mia, before jumping himself following a row with his then wife, Natasha.
Liam died, but Mia survived the 50ft plunge from the fourth-floor balcony of the Petra Mare Hotel at Ierapetra, Crete, in August 2006.
The Hogans had gone on holiday in a "make or break" attempt to patch up their failing marriage and the incident occurred shortly before they were due to return home.
Hogan is asking the High Court to quash the unlawful killing verdict. He is acting through his older sister, Christine O'Connor, from St George, Bristol, with the benefit of legal aid.
His lawyers are expected to argue it was an irrational decision, wrong in law and based on insufficient evidence.
The Hogan marriage was unhappy. Before the balcony plunge, an argument had started between the couple and the then Mrs Hogan said she intended to leave her husband and take the children with her.
Hogan was cleared of murder by a Greek court but ordered to be detained in a psychiatric unit after a jury decided he had been suffering from "an earthquake of insanity".
His former wife, Natasha Visser, who has married again and is said to be distressed by the prospect of the hearing, is listed as an "interested party".
