'Funny, kind, caring and selfless': Tributes to Mark O'Sullivan ahead of final funeral of Kanturk tragedy

Mark O'Sullivan, one of the men who died in the tragedy in Kanturk.

More than 1,000 messages of support and tributes have been left on an online book of condolences for Mark O'Sullivan ahead of his funeral in Kanturk today. 

Mr O'Sullivan, 26, was shot dead in a bedroom of his home in a tragic murder-suicide that claimed the lives of three family members at farmlands in North Cork on Monday.