Image source, Family photoImage caption, Evan O'Connor was found dead alongside his parents Mark and Louise O'Connor. A 32-year-old man who killed his parents and younger brother has been found not guilty of their murders but guilty of manslaughter by diminished responsibility. The jury at the Central Criminal Court in Dublin accepted evidence given by two psychiatrists that Robert O'Connor was suffering from a relapse of schizophrenia when he stabbed the three.