On 28^th September 2014, 65-year old grandmother Diane Cunningham is bludgeoned to death in her Joyce, Washington home.  There are no witnesses and the only clues are receipts from a Walmart, a ferry crossing and a casino.  Luckily, these locations are all fitted with surveillance cameras.  Police scour hours of CCTV footage tracking Diane as she gambles and shops just hours before her death.   One man in each of the videos arouses detectives suspicions; but is he the killer?  Identifying and finding this individual is not so easy.  Detectives track the killer 700 miles across two states.  But not everything is as it seems.