A Clare farmer jailed for life for the murder of a 21-year-old student in 2011 has lost an appeal against conviction on grounds that the prosecution ought to have proved that he did not have diminished responsibility at the time.

A Clare farmer jailed for life for the murder of a 21-year-old student in 2011 has moved to appeal his conviction claiming the prosecution ought to have proved that he did not have diminished responsibility at the time.