Thursday 29 October 2026Compiled from published reports. Every claim links to its source.

Ireland Crime

Every case followed from the first report to the sentence, or to where the reporting stopped.

Case No. 7583Murder · Co. Dublin · 9 Jun 2024

Murder accused boarded ferry hours after alleged stabbing, trial hears

In the early hours of 9 June 2024, Mark Carroll, a man, was allegedly stabbed at Scribblestown Place, Finglas, Dublin 11, a home shared by Derek Boyd, a man, and his partner Chantelle Harcourt, a woman. CCTV allegedly shows Boyd boarding a Stena Line ferry at Belfast port that morning, and Harcourt is accused of trying to clean the scene before gardaí arrived. Boyd is on trial at the Central Criminal Court charged with murdering Carroll, and Harcourt is charged with impeding his prosecution. On 3 July 2026 the trial heard evidence, and both accused have pleaded not guilty to all charges.

  1. Reportednot reported
  2. Arrestednot reported
  3. Chargednot reported
  4. In court3 Jul
  5. Verdict
  6. Sentenced
reportedhappened, not reportedlatest stagenot yet

Key facts

consolidated from all reports
What happened
  • Mark Carroll, a man, was allegedly stabbed in the chest at a home in Finglas.
  • Derek Boyd, a man, is alleged to have come running from the address after Carroll.
  • CCTV showed Carroll, Megan Rock and the two accused spending several hours together on 8 June 2024.
  • A black Volkswagen Passat pulled up at the Stena Line terminal at Belfast port at 9.57am on 9 June 2024, and Boyd was seen getting out and hugging the partner of the male driver.
  • Chantelle Harcourt, a woman, is alleged to have made an effort to clean the scene before gardaí arrived.
Where
The alleged stabbing occurred at Scribblestown Place, Finglas, Dublin 11.
When
  • CCTV showed Carroll running from the house clutching his chest at 00.55 on 9 June 2024.
  • Boyd was captured on CCTV boarding the Stena Line ferry at 10.55am on 9 June 2024.
Cause
The prosecution case is that Boyd stabbed Carroll with the intention of killing him or causing serious harm.
Charges
  • Boyd has pleaded not guilty to murdering Mark Carroll, to making a threat to kill Megan Rock and to assaulting Megan Rock causing her harm.
  • Harcourt has pleaded not guilty to impeding prosecution at the scene and at Blanchardstown Garda Station.
In court
  • Boyd is on trial at the Central Criminal Court before Ms Justice Melanie Greally and a jury of seven men and five women.
  • The prosecution will not adduce direct evidence of what happened in the house during the seven-minute window.
Other details
Boyd and Harcourt are in a relationship, and Megan Rock is expected to be a witness in the case.
20 statements extracted from the articles
  • whatCCTV showed Mark Carroll running from the house clutching his chest at 00.55. (irishmirror.ie)
  • whatDerek Boyd also came running from the address following Carroll. (irishmirror.ie)
  • whatA black Volkswagen Passat pulled up outside the Stena Line passenger terminal at Belfast port at 9.57am on June 9. (irishmirror.ie)
  • whatDerek Boyd was seen disembarking the vehicle and hugging the partner of the male driver. (irishmirror.ie)
  • whatDerek Boyd was captured on CCTV at 10.55am boarding the Stena Line boat. (irishmirror.ie)
  • whatChantelle Harcourt is alleged to have made an effort to clean the scene before gardaí arrived. (irishmirror.ie)
  • whatCCTV showed Carroll, Megan Rock, and the two accused spending several hours together on 8 June 2024. (irishmirror.ie)
  • whereThe alleged stabbing occurred at Scribblestown Place, Finglas, Dublin 11. (irishmirror.ie)
  • whenThe incident occurred in the early hours of 9 June 2024. (irishmirror.ie)
  • chargeThe prosecution case is that Boyd stabbed Carroll with the intention of killing him or causing serious harm. (irishmirror.ie)
  • chargeDerek Boyd has pleaded not guilty to murdering Mark Carroll. (irishmirror.ie)
  • chargeDerek Boyd has pleaded not guilty to making a threat to kill Megan Rock. (irishmirror.ie)
  • chargeDerek Boyd has pleaded not guilty to assaulting Megan Rock causing her harm. (irishmirror.ie)
  • chargeChantelle Harcourt has pleaded not guilty to impeding prosecution at the scene. (irishmirror.ie)
  • chargeChantelle Harcourt has pleaded not guilty to impeding prosecution at Blanchardstown Garda Station. (irishmirror.ie)
  • courtDerek Boyd is on trial at the Central Criminal Court charged with the murder of Mark Carroll. (irishmirror.ie)
  • courtThe prosecution will not adduce direct evidence of what happened in the house during the seven minutes. (irishmirror.ie)
  • courtThe trial is before Ms Justice Melanie Greally and a jury of seven men and five women. (irishmirror.ie)
  • otherDerek Boyd is in a relationship with Chantelle Harcourt. (irishmirror.ie)
  • otherMegan Rock would be a witness in the case. (irishmirror.ie)

The reporting

newest first
  1. 3 Jul2026
    In courtirishmirror.ie, first report
    Murder accused boarded ferry hours after alleged stabbing, trial hears

    Trial evidence presented including CCTV footage showing the accused boarding a Stena Line ferry in Belfast hours after the alleged stabbing, the prosecution's case that the stabbing occurred during a seven-minute window, and the accused's pleas of not guilty to all charges.

    accused, Derek Boyd, 31, male, named, irish (judged from name)Derek Boydvictim, Mark Carroll, 34, male, irish (judged from name)Mark Carrollaccused, Chantelle Harcourt, 34, female, named, irish (judged from name)Chantelle Harcourtvictim, Megan Rock, female, irish (judged from name)Megan Rock