Emma Caldwell was murdered in April 2005 by serial rapist and sex offender, Iain Packer. The investigation of her murder was one of Scotland's longest-running cases, with nineteen years between her death and Packer's imprisonment in 2024 for a minimum term of 36 years.

Pat was joined on the show by Sam Poling the BBC investigative journalist behind the BBC podcast who managed to catch a killer and Stuart Hall Retired Detective Constable, who solved the case in 5 weeks but had to wait 19 years for justice.