Two people who were being held for questioning over the death of James Cahillane in Co Kerry have been released without charge.
The body of Mr Cahillane, 58, was found after a fire at his Beaufort home in April last year.
A post-mortem examination found that he had suffered injuries consistent with an assault.
A man in his late 20s and a woman in her early 50s were arrested in Killorglin yesterday.
Gardaí say files on the case are to be sent to the Director of Public Prosecutions.