In June 2021, armed Gardaí carried out a search at a hostel on Gardiner Street in Dublin. They arrested a 37-year-old man named Mark Wolf. He had a sordid past. He was a wanted man in the UK. So how did gardaí find him? And what dark obsessions was he harbouring?

Presented by John Sweetman

Created by Darren Cleary

Episode Written by Darren Cleary

Script Edited by Eoin Brennan

Produced by Siobhan Walsh

Produced by Siobhan Maguire

Executive Produced by Eoin Brennan

Executive Produced by Ruth Fitzsimons

Sound Design and Editing by Neil Kavanagh

Audio Editing Support by Ed Smith

Marketing Support by Laura Bracken and Róisín Reilly

Social Support by Mark Hayes and Robyn Ree

Artwork and Graphics by Eric Rowntree

On the 14th of May 2018, Ana Kriégel left her home in Leixlip, Co Kildare, with a promise to her father that she wouldn't be long.

But Ana never came home and her disappearance sparked a three-day search of a local park, the last place where she had been seen walking with another child.

It was a missing person's case that gripped the nation as everyone hoped the smiling girl in her favourite black hoodie would be found. What happened would become one of Ireland's most disturbing and unsettling cases.

In this episode of Lines of Enquiry, John Sweetman takes us back to those dark days of her disappearance, and why her killers will never be named.

Presented by John Sweetman

Created by Darren Cleary

Episode Written by Siobhán Maguire and Eoin Brennan

Script Edited by Eoin Brennan

Produced by Siobhan Walsh

Produced by Siobhan Maguire

Executive Produced by Eoin Brennan

Executive Produced by Ruth Fitzsimons

Sound Design and Editing by Neil Kavanagh

Audio Editing Support by Ed Smith

Marketing Support by Laura Bracken and Róisín Reilly

Social Support by Mark Hayes and Robyn Ree

Artwork and Graphics by Eric Rowntree

In this episode of Lines of Enquiry: Case Notes producer Siobhan Maguire steps out from behind the scenes to share a significant update on one of season one’s most troubling stories, the death of 23 year old Kelly Lynch in Monaghan. Siobhan outlines new findings from an independent pathology review commissioned by the Katie Trust, including questions over the original cause of death, issues around a lack of evidence, and indications that third party involvement may no longer be ruled out.

She and John discuss what this could mean for the ongoing investigation, the unanswered questions faced by Kelly’s family, and the implications of decisions made in the crucial early hours of the case.

Then, Siobhan turns interviewer, putting your questions to John about his time in An Garda Síochána, the emotional impact of revisiting difficult cases for the podcast, and what listeners can expect from season three of Lines of Enquiry.

Lines of Enquiry returns next week, on Tuesday 14th April.