On Friday 3rd September 1999, 17-year-old Raonaid Murray had just finished a nine hour work shift and was making last-minute plans with her friends to go clubbing. Just after 11pm, promising her friends she'd be back soon, Raonaid left Scott's Bar in Dun Laoghaire, Co. Dublin to nip home and change clothes. Within an hour, she was dead. Raonaid was stabbed in a vicious attack that left Ireland reeling. Almost 27 years later, Raonaid Murray's murder remains Unsolved.

In part one we meet Raonaid and look in detail at her life and her last day on earth. Get in touch at unsolved@rte.ie