Authorities renew an appeal related to the disappearance and alleged murder of Antoinette Smith, who vanished after attending a David Bowie concert at Slane Castle in July 1987. Multiple reports say Smith, a mother of two, went to the event in County Meath with a friend and disappeared afterward. She is described as having attended the concert as part of a group or with a companion, and her absence later prompted an investigation that remains unresolved. The renewed appeal calls for information from the public that could help trace her whereabouts and clarify what happened after the concert. Reports note that the case has been ongoing for decades, with renewed attention prompted by the 39th anniversary of her disappearance. The accounts agree on the central timeline: Smith attends the David Bowie concert at Slane Castle in 1987 and then vanishes, leading to an appeal for information to assist investigators.