PICK OF THE WEEK
Murder Wall
MURDER WALL
Saturday 22 June
22:40 CAT
The Real Murders of Orange County
THE REAL MURDERS OF ORANGE COUNTY
Thursday 20 June
20:00 CAT
Green River Killer: Hunting the Monster
GREEN RIVER KILLER: HUNTING THE MONSTER
Thursday 20 June
21:00 CAT
ON CBS JUSTICE TONIGHT
The Mark of a Killer
THE MARK OF A KILLER
CBS Justice at 21:00 CAT

Series 2, Episode 9.
A serial killer taunted Witchita, Kansas for decades with brazen letters taking credit for his kills. At the introduction of the computer era, the killer accidentally leaves behind a digital clue.