Ireland Case No. 1607Unlawful killing, arson, burglary · Co. Dublin · 21 Aug 2018
Appeal allowed in Dublin building fire manslaughter case
Dean Boland, a man aged 35, broke into a downstairs apartment at Oaklands Terrace, Terenure, Dublin, stole a rucksack, and set fire to the building on 21 August 2018. Ohari Viera, a man originally from Angola, was living upstairs with two other men; all three evacuated but Viera re-entered the burning building and was later found dead from cardiac arrest following smoke inhalation. A Dublin Circuit Criminal Court jury convicted Boland of manslaughter, arson, and burglary in December 2022, and he was sentenced to eight years in prison in March 2023. The Court of Appeal allowed his appeal against the manslaughter conviction on 7 October 2025, the sole ground being causation.
- Reportednot reported
- Arrestednot reported
- Chargednot reported
- In court26 May
2 reports - Verdictnot reported
- Sentenced30 Mar
reportedhappened, not reportedlatest stagenot yet
Key facts
consolidated from all reports- What happened
- Boland broke into a downstairs apartment, stole a rucksack, and set fire to the property.
- Viera was living in an upstairs apartment with two other men; all three evacuated but Viera re-entered the burning building and was later found dead.
- Where
- The fire was started in the ground floor apartment at Oaklands Terrace, Terenure, Dublin.
- When
- The fire was set during the night on 21 August 2018.
- Cause
- The State Pathologist stated Viera's cause of death was cardiac arrest following inhalation of smoke and fire gases.
- Charges
- Boland was convicted of manslaughter, damaging property by arson, and burglary.
- In court
- A Dublin Circuit Criminal Court jury convicted Boland in December 2022 after he pleaded not guilty.
- The Court of Appeal allowed Boland's appeal against the manslaughter conviction on 7 October 2025, the sole ground being causation.
- Sentence
- Boland was sentenced to eight years in prison in March 2023, with a headline sentence of ten years reduced.
- Other details
- Boland had a longstanding drug addiction, was homeless at the time, and was intoxicated when he started the fire.
- Viera was originally from Angola.
43 statements extracted from the articles
- whatBoland broke into a downstairs apartment, stole a rucksack, and set fire to the property. (irishmirror.ie)
- whatViera was living in an upstairs apartment with two other men, and all three evacuated the building safely. (irishmirror.ie)
- whatViera went back into the house for an unknown reason and never returned. (irishmirror.ie, irishtimes.com)
- whatDublin Fire Service officers found Viera in an upstairs room and he was taken by ambulance to St James' Hospital. (irishmirror.ie)
- whatBoland broke into a downstairs apartment where Viera was living and stole a rucksack (irishtimes.com)
- whatBoland set fire to the property after the break-in (irishtimes.com)
- whatViera was living in an upstairs apartment with two other men (irishtimes.com)
- whatAll three men managed to evacuate the building safely (irishtimes.com)
- whatOthers who tried to enter the building after Viera were prevented as it became engulfed in smoke and flames (irishtimes.com)
- whatAfter the other occupants had called the fire brigade, the deceased re-entered the building and went upstairs. (courts.ie)
- whereThe fire was at Oaklands Terrace, Terenure, Dublin. (irishmirror.ie)
- whereThe incident occurred at Oaklands Terrace, Terenure (irishtimes.com)
- whereThe fire was started in the ground floor apartment of the building. (courts.ie)
- whenThe fire was set during the night when several people were staying in the building. (irishmirror.ie)
- whenThe incident occurred on 21 August 2018 (irishtimes.com)
- whenA fire was started in the building on 21 August 2018. (courts.ie)
- causeThe State Pathologist stated Viera's cause of death was cardiac arrest following inhalation of smoke and other fire gases. (irishmirror.ie)
- causeThe fire was started by the appellant. (courts.ie)
- causeThe deceased was found dead in his apartment from cardiac arrest following inhalation of smoke and fire gases. (courts.ie)
- chargeBoland was convicted of unlawful killing, damaging property by arson, and burglary (irishtimes.com)
- chargeDean Boland was found guilty of manslaughter contrary to common law. (courts.ie)
- courtBoland was convicted by a Dublin Circuit Criminal Court jury in December 2022. (irishmirror.ie)
- courtBoland had pleaded not guilty to the offences. (irishmirror.ie, irishtimes.com)
- courtThe DPP put the case in the high range of manslaughter offences. (irishmirror.ie)
- courtBoland was convicted in December 2022 by a Dublin Circuit Criminal Court jury (irishtimes.com)
- courtIn the original trial, the defence applied to withdraw the case from the jury on causation grounds, which was refused by trial judge Elma Sheahan (irishtimes.com)
- courtThe State argued fire was the substantial cause of death and there was very little time between Viera fleeing and re-entering (irishtimes.com)
- courtMs Justice Isobel Kennedy presiding at the three-judge court reserved judgment (irishtimes.com)
- courtThe verdict followed a trial before Dublin Circuit Criminal Court on 16 December 2022. (courts.ie)
- courtThe trial judge refused the application that the manslaughter count be withdrawn from the jury on causation grounds. (courts.ie)
- courtThe Court of Appeal agreed that the test of causation in manslaughter is one of substantial cause rather than the de minimis test. (courts.ie)
- sentenceBoland was sentenced to eight years in prison for the unlawful killing of Ohari Viera. (irishmirror.ie)
- sentenceJudge Sheahan set a headline sentence of ten years before reducing it to eight. (irishmirror.ie)
- sentenceBoland was sentenced to eight years in prison (irishtimes.com)
- sentenceHe was sentenced to eight years' imprisonment on the manslaughter count. (courts.ie)
- otherBoland had a longstanding drug addiction and was homeless at the time of the fire. (irishmirror.ie)
- otherBoland was intoxicated when he started the fire but remained at the scene. (irishmirror.ie)
- otherBoland's previous convictions are District Court offences including an assault, and he is serving a prison sentence for attempted robbery. (irishmirror.ie)
- otherBoland does not accept the verdict of the jury. (irishmirror.ie)
- otherViera was originally from Angola (irishtimes.com)
- otherThe appeal is against conviction and the sole ground pursued concerns causation. (courts.ie)
- otherThe judgment was delivered on 7 October 2025. (courts.ie)
- otherThe judgment summary reads 'Allow Appeal'. (courts.ie)
The reporting
newest first- 7 Oct2025[2025] IECA 214 Court of Appeal: The Director of Public Prosecutions -v- Dean Boland
Court of Appeal judgment on the appeal against the manslaughter conviction. The appeal concerns causation and whether the deceased's re-entry into the burning building was a novus actus interveniens. The text is partial and ends mid-reasoning; the 'Allow Appeal' summary is the only indication of outcome.
convicted, Dean Boland, male, named, irish (judged from name)Dean Bolandvictim, male - 26 May2025Arsonist not to blame for death of man who went back into apartment building, Court of Appeal told
Court of Appeal heard Boland's argument that Viera's re-entry into the burning building broke the chain of causation; the State argued causation is inherently a jury matter; Ms Justice Isobel Kennedy reserved judgment.
victim, Ohari Viera, male, non-irish (judged from name)Ohari Vieraconvicted, Dean Boland, 37, male, named, irish (judged from name)Dean Boland - 30 Mar2023Man jailed for eight years over death of man in Dublin building he set on fire
Reports the sentencing: eight years for manslaughter (headline sentence of ten years reduced), with the sentence to run from the date of conviction in December 2022. Includes victim impact statement from Viera's daughter Tatiana, and details of the forensic and medical findings.
victim, Ohari Viera, male, non-irish (judged from name)Ohari Vieraconvicted, Dean Boland, 35, male, named, irish (judged from name)Dean Boland