William Delaney disappeared two years ago.
The family of a murdered grandad say they are going through "a living nightmare".
William Delaney was last seen in Portlaoise in January 2019.
A man, who was arrested on suspicion of the murder of Mr. Delaney on Wednesday, has been released without charge.
Crime Editor with the Irish Sun, Stephen Breen says the Delaney family is desperate for answers: