On November 21, 2017, Barry Cummins walked into a house at 3 Grattan Street in Youghal to conduct an interview for Prime Time with Richard Satchwell who said his wife Tina Satchwell had gone missing.  Cummins was a journalist of vast experience and accomplishments but the hours he spent in that house with his RTÉ colleagues were as significant as anything in his career. Cummins’s new book — Buried Secrets: The Murder of Tina Satchwell and a Journalist’s Journey into Ireland’s Most Chilling Cold Case — tells this story in a gripping way. Tina Satchwell had last been seen alive…