In part two of Gary's chat with recently retired Scotland Yard Detective David Leach, the pair talk about David's work in some very high-profile counter-terrorism investigations and his work on a decade-old unsolved murder.

Rejection, resilience and the road to prison: Claude Robertson & Vince Hurley Pt.1
1:04:04

How to spot someone planning a mass attack: Ian Cherrington Pt. 2
53:15

Inside the mind of a serial killer: Ian Cherrington Pt. 1
57:27