Series 2, Episode 2

S2 E2: With their victim identified, Cassie and Sunny begin to find out a bit more about David Walker by talking to his ex-wife, DI Tessa Nixon, who reveals he suffered from depression. A search through the original investigation files and some numbers from David's pager help build a picture of him - and also lead to a few potential suspects. However, his son Jason struggles to deal with the news that someone murdered his dad.