Ireland Crime

Named as

Victim

Born

Between December 1959 and December 1960, from the ages reported

Nationality

Belgian, as stated in a report

Offences

Murder

Where

Co. Westmeath

Reporting

30 reports, 25 Oct 2022 to 19 Dec 2025

Outlets

irishtimes.com, irishmirror.ie, rte.ie, extra.ie, thejournal.ie, dublinlive.ie, leinsterexpress.ie, kildarenow.com, longfordleader.ie, garda.ie, offalyexpress.ie

Photographs

as published, with the outlet's credit

Images are shown from the outlet that published them and link back to the article. Copyright stays with the credited photographer or agency.

• Man found not guilty of Westmeath murder by reason of insanity Murder · Co. Westmeath

  Stefan Nivelles Posschier, a 65-year-old Belgian man who worked as a fortune teller, was stabbed 18 times at his home in Rattin, Co Westmeath, between 24 and 25 October 2022. His son Ross O'Rourke, 31, was arrested on suspicion of murder on 7 November 2022 and charged at Mullingar District Court on 10 November. O'Rourke pleaded not guilty by reason of insanity, and a jury at the Central Criminal Court found him not guilty by reason of insanity on 15 December 2025. He was committed to the Central Mental Hospital for ongoing treatment.

  Acquitted, 15 Dec 2025Victim · 30 reports

Each entry shows how that report described them.

1. 19 Dec2025
   Acquittedirishtimes.com, in Man found not guilty of Westmeath murder by reason of insanity

   Man (31) who killed father found not guilty of murder by reason of insanity

   victim, Stefan Nivelles Posschier, 65, male, non-irish (judged from name)Stefan Nivelles Posschier♂65
2. 15 Dec2025
   Acquittedirishtimes.com, in Man found not guilty of Westmeath murder by reason of insanity

   Man who stabbed father to death during psychotic episode not guilty by reason of insanity

   victim, Stefan Nivelles Posschier, 65, male, non-irish (judged from name)Stefan Nivelles Posschier♂65
3. 15 Dec2025
   Acquittedirishmirror.ie, in Man found not guilty of Westmeath murder by reason of insanity

   Man who stabbed father 18 times not guilty of murder by reason of insanity

   victim, Stefan Nivelle Posschier, 65, male, non-irish (judged from name)Stefan Nivelle Posschier♂65
4. 15 Dec2025
   Acquittedrte.ie, in Man found not guilty of Westmeath murder by reason of insanity

   Man found not guilty of murder by reason of insanity

   victim, Stefan Nivelle Posschier, 65, male, non-irish (judged from name)Stefan Nivelle Posschier♂65
5. 11 Nov2022
   In courtirishmirror.ie, in Man found not guilty of Westmeath murder by reason of insanity

   First picture of son charged with murdering his fortune teller dad in Westmeath

   victim, Stefan Nivelles Posschier, 65, male, non-irish (judged from name)Stefan Nivelles Posschier♂65
6. 10 Nov2022
   In courtextra.ie, in Man found not guilty of Westmeath murder by reason of insanity

   Son Charged With Murder Of Father Stefan Posschier

   victim, Stefan Nivelles Posschier, 65, male, non-irish (judged from name)Stefan Nivelles Posschier♂65
7. 10 Nov2022
   Chargedirishtimes.com, in Man found not guilty of Westmeath murder by reason of insanity

   Man (28) charged with murdering his father, clairvoyant Stefan Posschier

   victim, Stefan Nivelles Posschier, 65, male, non-irish (judged from name)Stefan Nivelles Posschier♂65
8. 10 Nov2022
   In courtirishmirror.ie, in Man found not guilty of Westmeath murder by reason of insanity

   Son 'shook his head' when gardai charged him with murder of fortune teller dad

   victim, Stefan Nivelles Posschier, 65, male, non-irish (judged from name)Stefan Nivelles Posschier♂65
9. 10 Nov2022
   Chargedthejournal.ie, in Man found not guilty of Westmeath murder by reason of insanity

   Westmeath-based psychic Stefan Posschier's son charged with his murder

   victim, Stefan Nivelles Posschier, 65, male, non-irish (judged from name)Stefan Nivelles Posschier♂65
10. 10 Nov2022
    Chargedirishmirror.ie, in Man found not guilty of Westmeath murder by reason of insanity

    Man charged in connection with murder of fortune teller in Westmeath

    victim, Stefan Nivelles Posschier, 65, male, non-irish (judged from name)Stefan Nivelles Posschier♂65
11. 7 Nov2022
    Arresteddublinlive.ie, in Man found not guilty of Westmeath murder by reason of insanity

    Man arrested in connection with death of fortune teller in Westmeath

    victim, Stefan Nivelles Posschier, 65, male, Belgian, non-irishStefan Nivelles Posschier♂65BE
12. 7 Nov2022
    Arrestedleinsterexpress.ie, in Man found not guilty of Westmeath murder by reason of insanity

    Man arrested on suspicion of Midlands murder of clairvoyant

    victim, Stefan Nivelles Posschier, 65, male, Belgian, non-irishStefan Nivelles Posschier♂65BE
13. 7 Nov2022
    Arrestedkildarenow.com, in Man found not guilty of Westmeath murder by reason of insanity

    BREAKING: Man arrested on suspicion of Midlands murder

    victim, Stefan Nivelles Posschier, 65, male, non-irish (judged from name)Stefan Nivelles Posschier♂65
14. 7 Nov2022
    Arrestedlongfordleader.ie, in Man found not guilty of Westmeath murder by reason of insanity

    BREAKING: Man arrested on suspicion of Midlands murder

    victim, Stefan Nivelles Posschier, 65, male, non-irish (judged from name)Stefan Nivelles Posschier♂65
15. 7 Nov2022
    Arrestedextra.ie, in Man found not guilty of Westmeath murder by reason of insanity

    Man Arrested In Connection With Death Of Belgian Psychic Stefan Nivelles Posschier

    victim, Stefan Nivelles Posschier, 65, male, Belgian, non-irishStefan Nivelles Posschier♂65BE
16. 7 Nov2022
    Arrestedirishmirror.ie, in Man found not guilty of Westmeath murder by reason of insanity

    Gardai arrest man over fortune teller's violent murder

    victim, Stefan Nivelles Posschier, 65, male, non-irish (judged from name)Stefan Nivelles Posschier♂65
17. 7 Nov2022
    Arrestedirishtimes.com, in Man found not guilty of Westmeath murder by reason of insanity

    Suspect held on suspicion of murdering Belgian man in Co Westmeath

    victim, Stephen (Stefan) Nivelles Posschier, 65, male, Belgian, non-irishStephen (Stefan) Nivelles Posschier♂65BE
18. 6 Nov2022
    Reportedirishmirror.ie, in Man found not guilty of Westmeath murder by reason of insanity

    Funeral of murdered psychic Stefan Nivelles Posschier to take place today

    victim, Stefan Nivelles Posschier, 65, male, Belgian, non-irishStefan Nivelles Posschier♂65BE
19. 1 Nov2022
    Chargedgarda.ie, in Man found not guilty of Westmeath murder by reason of insanity

    Update: Fatal Assault on Stefan Nivelles Posschier, 65 years, Rattin, Co. Westmeath, 25th October 2022

    victim, Stefan Nivelles Posschier, 65, non-irish (judged from name)Stefan Nivelles Posschier65
20. 28 Oct2022
    Reportedirishtimes.com, in Man found not guilty of Westmeath murder by reason of insanity

    Arrest expected after violent killing of Stefan Posschier in Westmeath

    victim, Stefan Posschier, 65, male, non-irish (judged from name)Stefan Posschier♂65
21. 28 Oct2022
    Reportedextra.ie, in Man found not guilty of Westmeath murder by reason of insanity

    Westmeath Psychic Was Stabbed To Death Before Being 'Partially Buried In Back Garden'

    victim, Stefan Posschier, 65, male, non-irish (judged from name)Stefan Posschier♂65
22. 28 Oct2022
    Reportedirishmirror.ie, in Man found not guilty of Westmeath murder by reason of insanity

    Murdered Westmeath psychic remembered as 'kindest, funniest and caring friend'

    victim, Stefan Nivelles Posschier, 65, male, non-irish (judged from name)Stefan Nivelles Posschier♂65
23. 27 Oct2022
    Reportedextra.ie, in Man found not guilty of Westmeath murder by reason of insanity

    Sister Of Belgian Man Killed In Westmeath Attack Pays Tribute

    victim, Stefan Nivelles Posschier, 65, male, Belgian, non-irishStefan Nivelles Posschier♂65BE
24. 27 Oct2022
    Reportedirishtimes.com, in Man found not guilty of Westmeath murder by reason of insanity

    Remains of victim in Westmeath fatal attack were found wrapped in plastic in garden

    victim, Stefan Posschier, 65, male, non-irish (judged from name)Stefan Posschier♂65
25. 27 Oct2022
    Reportedextra.ie, in Man found not guilty of Westmeath murder by reason of insanity

    Belgian Man Found Dead In Westmeath Was 'Violently Assaulted'

    victim, Stefan Nivelles Posschier, 65, male, Belgian, non-irishStefan Nivelles Posschier♂65BE
26. 27 Oct2022
    Reportedoffalyexpress.ie, in Man found not guilty of Westmeath murder by reason of insanity

    Gardai investigating death of man in Midlands say he died as result of injuries sustained in 'violent assault'

    victim, Stefan Nivelles Posschier, 65, male, non-irish (judged from name)Stefan Nivelles Posschier♂65
27. 27 Oct2022
    Reportedirishtimes.com, in Man found not guilty of Westmeath murder by reason of insanity

    Gardaí investigating killing of Stefan Posschier extend appeal to social media contacts

    victim, Stefan Nivelles Posschier, 65, male, non-irish (judged from name)Stefan Nivelles Posschier♂65
28. 27 Oct2022
    Reportedirishmirror.ie, in Man found not guilty of Westmeath murder by reason of insanity

    Gardai looking for people who spoke to victim of 'violent' Westmeath assault

    victim, Stefan Posschier, 60s, male, non-irish (judged from name)Stefan Posschier♂60s
29. 27 Oct2022
    Reportedrte.ie, in Man found not guilty of Westmeath murder by reason of insanity

    Man killed in Westmeath was 'violently assaulted'

    victim, Stefan Nivelles Posschier, 65, male, non-irish (judged from name)Stefan Nivelles Posschier♂65
30. 25 Oct2022
    Arrestedgarda.ie, in Man found not guilty of Westmeath murder by reason of insanity

    Arrest: Fatal Assault on Stefan Nivelles Posschier, 65 years, Rattin, Co. Westmeath, 25th October 2022

    victim, Stefan Nivelles Posschier, 65, non-irish (judged from name)Stefan Nivelles Posschier65

Matched on the name as printed, ignoring quoted nicknames, and split by the ages reported. Two people who share a name and age would appear together here.