Courts / Carlow / Report

Man admits putting Valium in partner's sandwich

Date
2025-05-29
Stage
Sentence
Primary locality
Carlow Town
County
Carlow

Summary

Mark O'Neill, 62, of Carlow Town, was sentenced at Carlow Circuit Criminal Court after pleading guilty to intentionally or recklessly administering a substance capable of interfering substantially with another person's bodily functions in August 2024. The defendant admitted to placing two Valium tablets in a sandwich prepared for his then-partner, claiming he intended to help her relax due to stress. Judge Eugene O'Kelly described the act as "shockingly reckless," noting that O'Neill, who had no previous convictions, knew the medication could interfere with bodily functions. A probation report indicated O'Neill was at a low risk of re-offending. The judge set a headline sentence of two years and six months but reduced it to 18 months, which was suspended in full on strict conditions for two years. The court accepted the plea on the basis of recklessness rather than intent to harm. O'Neill acknowledged his actions were extremely reckless and has since lost contact with his ex-partner and son. The matter was concluded with this suspended sentence.

Who, what, where, when and why

What: Report matter: Man admits putting Valium in partner's sandwich. Charges or matters: intentionally or recklessly administering, or causing to be taken, a substance which he knows to be capable of interfering substantially with the other's bodily functions in August 2024. Procedural stage: sentence

When:

Why: A man who admitted that he put two Valium tablets in his partner's tomato and mayonnaise sandwich because he felt she needed to relax has been given a suspended sentence for poisoning the woman. CNI source report

Case subjects

Carlow Town

Defendant

Charges: intentionally or recklessly administering, or causing to be taken, a substance which he knows to be capable of interfering substantially with the other's bodily functions in August 2024 (Admitted)

Plea: Guilty

Mark O'Neill

Defendant

Charges: intentionally or recklessly administering, or causing to be taken, a substance which he knows to be capable of interfering substantially with the other's bodily functions in August 2024 (Admitted)

Plea: Guilty

Outcome: A probation report that had been ordered following the previous sentence hearing concluded that O'Neill was at a low risk of re-offending and counsel submitted that the report itself was "favourable".

Places mentioned

Secondary Mention
Court Venue
  • Carlow
  • Carlow Circuit Criminal Court

Topics

Stage Sentence

Related court reports

Read the original CNI report

Correction or retraction request

If a fact, identity, locality or legal outcome needs review, email the newsroom with this report's details prefilled.

Email a correction request