The Cork-based sister of the man jailed for life for the murder of TV presenter Jill Dando was in London today to support him in his appeal against his conviction.
Michelle Diskin of Ballincollig was at the High Court today to support Barry George, along with his mother Margaret.
Mrs Diskin has consistently argued Mr George's innocence since his conviction last July.
The murder of Jill Dando with a single bullet prompted the biggest police hunt of modern times in the UK. The murder weapon was never found.
Mr George's appeal will centre on the crucial question of identification.
His legal team will argue that identification evidence used in the original case was flawed.
The case was unusual in that there were no eyewitnesses, no apparent motive, and no clues left at the scene.
George was sentenced to life imprisonment after being found guilty of the April 1999 shooting of the 37-year-old BBC Crimewatch presenter on the steps of her home in Gowan Avenue, Fulham, south-west London.
His appeal, which is expected to last four days, was due to be heard by the Lord Chief Justice, Lord Woolf, sitting with Mr Justice Curtis and Mr Justice Henriques.
George was expected to be brought to London's Law Courts for the hearing in court 4, where he will be able to listen from the dock to submissions that his conviction is "unsafe".