Gardaí in Limerick have arrested four people in connection with the investigation into the murder of a man in 2007.
Jeffrey Hannon (19) was found dead on an open green area in a housing estate at Galtee Drive near the Galvone Industrial Estate on November 22nd, 2007.
The father of one died from serious head injuries, which it is understood were inflicted with a heavy, sharp instrument.
Gardaí this morning arrested two men and two women, ranging in ages from late teens to late 30s, in the Limerick area.
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All four are currently detained under the provisions of Section 30 of the Offences Against the State Act at Roxboro Road and Henry Street Garda Stations.