The area in Ireland has been identified due to missing people that are between their late teens and forties, all women and all have disappeared without any explanation or evidence. They appear around the eastern part around the borders of Leinster. The unofficial list gives 6 to 8 people that went missing and the popular hypothesis is that it may have been a serial killer (or killers) that operated in the area during this period. The women have been in the media periodically and Irish Police have an operation to try and resolve it but sadly nothing has come up as of yet.
Annie McCarrick went missing in 1993, she was 26 years old, an American student who was last seen outside Johnny Fox’s pub in Glencullen, County Dublin: After that in the same year is Eva Brennan, aged 40 who left her parents house to go back to her apartment and was never seen again. A year later, Imelda Keenan who was 22 years old went missing from Mountmellick, County, she went missing 3rd January 1994 and the last sighting of her was in Waterford.
Josephine Dollard, aged 21 went missing in 1995 and was in the Moone area, she was hitchhiking back from Dublin to Kilkenny and a witness saw her using a payphone but that’s the last sighting. Then in 1996 Ciara Breen, aged 18, went missing from Dundalk and in the same year Deidre Jacob went missing without a trace. She was a few yards from her parents and her case is puzzling because she was also near passing motorists who witnessed her approaching her parents drive-way, however she never made it. In 1996 Fiona Pender was 7 months pregnant at 25 years old. She stepped out of her flat one evening and was never seen again. Then in 1998 came the disappearance of 19 year old Fiona Sinnott, who was last seen leaving a pub in Broadway, County Wexford.
In 2012 there was a renewed interest because news broke about a 30 year old pregnant woman named Aoife Phelan who disappeared as she walked home from her friends. Her remains were later found, sadly, and a 24 year old man was charged with her murder, he was not linked to the other missing women.
For many it seems that they fear it is the work of a serial killer, either alone or with an accomplice, police have looked at Larry Murphy for this and was convicted of murder in 2001 for indecent acts and trying to strangle a Carlow business woman. He was surprised by two hunters as he tried to do so and ultimately they saved the poor woman. He strongly maintains that he is NOT connected to the murders and a woman said she knew it was not Larry Murphy, others also say however that since his imprisonment the vanishing stopped, but this is conjectural and does not really answer anything about where the poor women are.
Old BBC Article on the matter
Mysterious Universe Article