<p>When Anne O'Sullivan was diagnosed with terminal cancer, tensions within her family about who would inherit her substantial plot of farm land came to the surface.</p><p>Soon, Anne would find herself awake before dawn, running through fields and ditches to a neighbour's house to get help as a terrible darkness descended on the family farm. </p><p>This is a tragic story that saw a family torn apart as their home became consumed by fear and threats of violence towards Anne and her eldest son, Mark. Those rising tensions would lead to the most unfathomable and shocking moment of hatred and rage.</p><p>In this episode of Lines of Enquiry, John tracks the descent into violence and revisits his case notes on the letters that proved crucial to any understanding of events of that tragic day.</p><p>Presented by John Sweetman</p><p>Created by Darren Cleary</p><p>Episode Written by Eoin Brennan</p><p>Script Edited by John Sweetman</p><p>Research by Siobhan Maguire &amp; Eoin Brennan</p><p>Executive Produced by Eoin Brennan</p><p>Executive Produced by Ruth Fitzsimons</p><p>Produced by Siobhan Walsh</p><p>Produced by Siobhan Maguire</p><p>Sound Design and Editing by Neil Kavanagh</p><p>Audio Editing Support by Ed Smith</p><p>Marketing Support by Bríd Walsh and Róisín Reilly</p><p>Social Support by Mark Hayes and Robyn Ree</p><p>Artwork and Graphics by Eric Rowntree</p><p></p>