39 known cases 1993 – 2018
4 inquiry reports
| Date | Victim | Location | Event | Comment | download |
| 13-16 Nov 2018 | Pauline Kilkenny | Enniskillen | Mentally ill man repeatedly and fatally batters and stabs woman who’d helped him | History of severe mental illness and violence | |
| 06 Jul 2018 | Gerard Scullion | Banbridge | Mentally disordered man fatally batters and repeatedly stabs friend | ||
| 21 Oct 2017 | Anne O’Neill | Belfast | Mentally disordered man kills his mother with a chisel | ||
| 04 Jun 2017 | Hazem Ahmed Ghreir | Belfast | Mentally ill man fatally stabs stranger | Long & concerning MH history ‘slipped through safety net’ | |
| 26 May 2017 | Michael Cawdery (83) | Portadown | Psychotic man fatally stabbed elderly strangers after escaping from hospital | Southern Trust (NI) | Inquiry awaited |
| Marjorie Cawdery (83) | |||||
| 4-6 Nov 2016 | James Hughes | Belfast | Paranoid schizophrenic repeatedly and fatally stabs neighbour | Previous history of violent offending | |
| 21 Oct 2016 | John McCarthy | St Helier, Jersey | Mentally ill man fatally stabs pensioner | Convicted of Manslaughter by diminished reponsibility | |
| 18 Jan 2016 | Eddie Girvan | Greenisland, Co Antrim | Mentally ill woman smothers and fatally stabs pensioner | ||
| 12 Dec 2015 | Lisa Arustamovs | Portavogie | Psychotic man fatally strangled his mother | ||
| 29 Jan 2015 | Mohsin Bhatti | Belfast | Paranoid schizophrenic repeatedly and fatally stabs friend in unprovoked attack | No insight, failed to comply with treatment | |
| 4 Jun 2014 | Margaret Evans | Portstewart | Psychotic & depressed man fatally batters his mother who he thought was a witch | Substance abuser | |
| April/May 2014 | Baby (5 months) | N Ireland | Mother with post natal depression fatally smothers baby | 3 years probation | |
| 4 July 2013 | Brendan Owens (3) | Lisburn | Paranoid schizophrenic mother suffocates young son | Signed herself into psych unit day after | |
| 4 Jan 2013 | Aloysius Hackett | Augher, Co Tyrone | Depressed mentally ill man fatally shoots father | ||
| 14 Aug 2011 | Izabela Rzeszowska | Jersey | Mentally ill man fatally stabs family and neighbours | ||
| Kinga Rzeszowska (5yrs) | |||||
| Kacper Rzeszowski (2yrs) | |||||
| Marek Gartska | |||||
| Marta De La Haye | |||||
| Julia De La Haye (5yrs) | |||||
| 03 Apr 2011 | Lynn Coburn | Connor NI | Paranoid schizophrenic decapitates mother and stabs her repeatedly | Long MH history | |
| Nov-2009 | Michael J McGleenon | Lurgan NI | Psychotic mentally ill man repeatedly and fatally stabbed father | Long MH history, reportedly released from Psych clinic three days before assault | |
| 06 Jul 2009 | George Morrison | Belfast | Paranoid schizophrenic fatally stabs nephew | Unfit to plead – hospital order | |
| 11 May 2009 | Anthony Robin | Belfast | Mentally ill woman fatally stabbed partner | ||
| Aug-07 | William McClatchey | Belfast NI | Paranoid Schizophrenic with PD fatally stabs and dismembers victim then disposes body parts in wheelie bin | ||
| 27 April 2007 | William McMillan | Belfast | Psychotic alcoholic with Depression and PTSD fatally stabbed brother | ||
| Feb 2007 | Daniel Whyte | Belfast | Man with alcohol dependency syndrome fatally stabs friend | ||
| Jan-06 | Elaine Le Sauvage | Guernsey CI | Mentally ill man kills mother | ||
| 18 Dec 2005 | Patrick McGrath | Coalisland, Co Tyrone | Mentally ill man off meds with history of violence suffocates elderly postmaster and severely assaults sister | ||
| Oct-05 | Maureen Lyttle | Belfast | Schizophrenic fatally and repeatedly batters mother (‘a ferocious beating’) | Long MH History & previously sectioned | |
| Jul-05 | Lauren O’Neill (9) | Carryduff, Co.Antrim NI | MH homicide of daughter and herself | Ind Inq found catalogue of errors and missing notes | Inquiry |
| Jul-04 | Geraldine Kane | Belfast | Mentally ill man fatally stabs friend 5 times, later attempts suicide | Previous attempts to kill | |
| 28 June 2003 | New Born Baby | Enniskillen | Mentally ill teenager suffocates her baby | ||
| Mar-03 | Sharon Moore | Lisburn, NI | Paranoid Schizophrenic fatally stabbed and mutilated woman, a month after release from Psych hospital | Ind Inq 2006. Known risk of violence to others, just released from Psych hospital | Inquiry |
| Jul-99 | Marion Hobbs | Portadown NI | MH/Psychotic stabbing of girlfriend | ||
| Feb-95 | Daughter (4) | Isle of Man | MH patient attacks two daughters, killing younger one | Ind Inq 1997. Long MH history | Inquiry |
| Jan-94 | Kieran Hegarty (11) | Tyrone, NI | MH patient abducted and killed schoolboy | Inquiry | |
| 4 Mar 1993 | Alexander McNaught | Belfast | Mentally disordered man kills acquaintance |