Courts / Dublin / Report

Man stabbed childhood friend during 'bizarre' cannabis-induced psychosis attack

Date
2026-07-13
Stage
Sentence
Primary locality
Portmarnock
County
Dublin

Summary

A man with no previous convictions who was in a cannabis-induced psychosis when he stabbed his childhood friend in the back during a bizarre attack has had the balance of his jail sentence suspended. Neal Brennan, 29, pleaded guilty to assault causing harm to Cian Brennan on January 2, 2025, on Station Road, Portmarnock. The victim, who was a childhood school friend of Brennan, was stabbed in the back as he was getting into the passenger side of Brennan's car. The victim was hospitalised for four days following the assault, as the wound required surgery due to its proximity to his spine and vital organs. Judge Ronan Munro noted the bizarre nature of the offending and the absence of any previous convictions, which indicated that Brennan's moral responsibility was reduced. He imposed a headline sentence of five years, which was reduced to three and a half years considering Brennan's guilty plea and lack of previous convictions.

Who, what, where, when and why

What: Report matter: Man stabbed childhood friend during 'bizarre' cannabis-induced psychosis attack. Charges or matters: assault causing harm to Cian Brennan (no relation) on January 2, 2025 on Station Road, Portmarnock. Procedural stage: sentence

When:

Case subjects

Neal Brennan

Defendant

Charges: assault causing harm to Cian Brennan (no relation) on January 2, 2025 on Station Road, Portmarnock (Admitted)

Plea: Guilty

Outcome: He backdated the sentence to when the defendant first went into custody in January 2025 before he suspended the balance on strict conditions for four years, including that he not use any illicit drugs, particularly cannabis, have no contact with the victim without prior written consent from the victim, that he engage with HSE community mental health team and provide random drug tests when sought by the gardaĆ­.

Places mentioned

Court Venue
  • Dublin
  • Dublin Circuit Criminal Court
Incident

Topics

Drugs Stage Sentence Violent Crime

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Read the original CNI report

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