In just two years, former detective Craig Semple dealt with 12 murders and a budding serial killer. There were jail murders, drug murders and domestic violence murders. He even spent Christmas morning at a murder scene, after spending the night setting up a swing set for his young kids. But ultimately, locking up the bad guys took its toll.

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