DJ quizzed over RTE Gerry Ryan's death
Radio broadcaster Gareth O'Callaghan has told gardai that he does not know the identity of the drug dealer who supplied cocaine to his former colleague, Gerry Ryan (left).
Mr O'Callaghan had agreed to be interviewed by gardai after weekend reports indicated he might have information which could help their investigation.
But it is understood that he was unable to provide any information that could help progress their inquiries.
Mr O'Callaghan was interviewed by detectives in Dublin about the media indications and his reported comments.