It's been two years since the 2 part episode about Mike Morford's favorite Zodiac suspect, Mac was released. A lot of listeners have asked is there anything new on the Mac front, and it turns out there's plenty. In this special double length 2.5 hour episode, Mike is joined by fellow Zodiac researcher and Citizen Sleuth, Andrew Osborne. He is one of the people that has been digging hard into one of the most promising Zodiac Killer suspects to come along in years. The more digging that's done into Mac, the more shocking things that are found. How many coincidences does it take to reach a tipping point? 

In this episode, Mike Morford is joined by guest Ross Geraci of Planet X Filmworks who discusses his extensive research into the June, 1963 double murder of high school sweethearts; Robert Domingos and Linda Edwards, on a lonely beach in Santa Barbara County, CA and the mysterious April, 1962 murder of cab driver Ray Davis in Oceanside, CA. Both cases have been linked in some ways to the later Zodiac murders, due to strong similarities in the cases. But there are also some key differences. Our guest Ross walks us through these cases and discusses his 'boots on the ground' approach to working these cases.

On December 20th, 1968, teenagers David Faraday and Betty Lou Jensen would become the first confirmed victims of the Zodiac Killer. They were gunned down on sleepy Lake Herman Rd on the outskirts of Vallejo in a tight six minute window of time. At the time of the murders, police were stumped as to who would want the young couple dead. It wasn't until months later in July, 1969 that Zodiac would strike again, and take credit for the Lake Herman Rd murders; launching one of the greatest unsolved mysteries in American history- who was the Zodiac Killer?; a question still being asked over half a century later.