Ireland Named in reporting
Christopher O'Mahony
Born between November 1957 and March 1958, from the ages reported. 9 reports across 1 case, 18 Mar 2025 to 12 Nov 2026
Key facts
from every report naming them- Born
- Between November 1957 and March 1958, from the ages reported
- Convicted of
- Sexual assault, Indecent assault
- Where
- Co. Limerick
- Reporting
- 9 reports, 18 Mar 2025 to 12 Nov 2026
- Outlets
- limerickpost.ie, limerickleader.ie, irishmirror.ie, thejournal.ie, irishtimes.com
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.
Cases
latest first- Limerick man awaits sentencing for indecent assault of third victim Co. Limerick
Christopher O'Mahony (68), of Kerrykyle, Ardagh, County Limerick, sexually abused his daughter Emma O'Shaughnessy, now 42, from 1993 to 1996 when she was aged 10 to 13, and his sister-in-law Helen Costelloe, now 51, from 1983 to 1989 when she was aged between nine and 15. The abuse emerged after a family meeting on 4 July 2021 when Ms Costelloe disclosed it and Ms O'Shaughnessy said she had also been abused, and O'Mahony presented himself at Henry Street Garda Station with his wife three days later and admitted it. He pleaded guilty to 18 sample counts of sexual and indecent assault from 54 on the indictment and was jailed for nine years by Judge Sinead McMullan at Limerick Circuit Criminal Court on 20 March 2025, and placed on the sex offenders register. In November 2026, a third victim who contacted gardai after reading reports of the case came forward, and O'Mahony pleaded guilty at Limerick Circuit Criminal Court to two counts of indecently assaulting her on two dates in the 1970s when she was aged between five and 12, with sentencing due on 19 November 2026.
Sentenced, 20 Mar 2025Convicted of sexual assault9 reports
Timeline
every report naming Christopher O'Mahony, newest firstEach entry shows how that report described them.
- 12 Nov2026‘Monster’ paedophile facing more jail time after third victim comes forwardconvicted, Christopher O'Mahony, 68, male, namedChristopher O'Mahony
- 21 Mar2025BREAKING: Limerick 'paedophile' and 'monster' jailed for sexually abusing daughter and sister-in-lawconvicted, Christopher O'Mahony, 67, male, namedChristopher O'Mahony
- 21 Mar2025‘Monster’ and 'paedophile' father jailed for nine years for sex abuse of daughter and sister-in-lawconvicted, Christopher O'Mahony, 67, male, namedChristopher O'Mahony
- 20 Mar2025'Monster, paedophile' dad jailed as victims of horrific abuse speak outconvicted, Christopher O'Mahony, 67, male, namedChristopher O'Mahony
- 20 Mar2025Man jailed for nine years for sexually abusing daughter and sister-in-lawconvicted, Christopher O'Mahony, 67, male, namedChristopher O'Mahony
- 20 Mar2025‘Monster’ jailed for nine years for sexually abusing daughter and sister-in-lawconvicted, Christopher O'Mahony, 67, male, namedChristopher O'Mahony
- 19 Mar2025‘Civil war’ breaks out in Limerick family after victims reveal ‘secret’ of sexual abuseaccused, Christopher O'Mahony, 67, male, namedChristopher O'Mahony
- 18 Mar2025Limerick man unmasked as ‘monster’ who sexually abused daughter and sister-in-lawconvicted, Christopher O'Mahony, 67, male, namedChristopher O'Mahony
- 18 Mar2025Controlling 'monster' sexually abused daughter and sister-in-law and rationed toilet paper, Limerick court hearsaccused, Christopher O'Mahony, 67, male, namedChristopher O'Mahony
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.
This page is put together automatically from the reports listed above. A charge is not a conviction. If something here is wrong or out of date, report it.