'Private Rooney leaves behind his heartbroken mother and girlfriend whom he was due to marry next year'

'Gardai launched a murder investigation into the death of Mr Mooney on Friday evening'

'The past number of days have been traumatic for the community'

The jockey is the teenage son of Grand National-winning trainer Henry de Bromhead.

'In early August, 25-year old Dion was diagnosed with Adenocarcinoma'

His family have asked that people wear bright clothes in tribute to Luke.