Disturbing night-time activity in a Glasgow cafe becomes a focus for the police. And the last phone call to Emma's mobile sets alarm bells ringing.

CREDITSReporter: Samantha PolingProducer: Mona McAlindenAudio Editor: Jennifer TraceyStory Editor: Kirsty WilliamsAudio editing and mixing: Fraser Jackson and Kris McConnachieExecutive Producers: Jennifer Tracey and Shelley JofreCommissioning Editors: Louise Thornton and Gareth HydesThanks to Matt Roper Special thanks to Eamon O Connor and all those who trusted us to tell their stories.Who Killed Emma? is created and made by BBC Scotland on BBC Sounds.