Roscommon Bound and Roscommon County Council have postponed the Global Rossie Day which was scheduled to take place this afternoon but has been postponed due to the death of Colm Horkan.
The event is being put off as a mark of respect to the late Garda and his family.
A new date for the online showcase of Roscommon, it's people, sporting and cultural life will be announced in the coming days.
Longford County Council has also opened an online book of condolence to allow the people of the county to express their sympathy to the family, friends and colleagues of Detective Garda Colm Horkan.