A fresh inquest is to begin later into the death of a six-year-old boy who was killed in a fall from a hotel balcony in Greece.Liam Hogan, from Bradley Stoke, South Gloucestershire, died in 2006 when his father John jumped with him and Liam\'s younger sister Mia, two.Liam suffered fatal head injuries in the 50ft (15m) fall in Crete. His father and sister survived.An inquest in March 2008 recorded he was unlawfully killed.A Greek court found Mr Hogan not guilty of murder because of his mental state at the time but ordered him to be detained in a psychiatric unit.But in March 2008, coroner Paul Forrest found that John Hogan unlawfully killed Liam in Crete.The inquest ruling was overturned by the High Court in May 2009, after judges said the question of Mr Hogan\'s mental state \"was simply not addressed\".They ordered that the case should go back \"for further consideration\" before a different coroner because the unlawful killing verdict was flawed.A new three-day inquest is due to start at 10:00 GMT at Flax Bourton coroner\'s court, near Bristol.The Hogans had gone on holiday to Crete in August 2006 in an attempt to save their failing marriage.The incident happened shortly before they were due to fly home.Mia suffered a broken arm. Mr Hogan suffered leg, chest and arm injuries.