Four decades later, he has finished writing Triangular UFOs: An Estimate of the Situation. He said it is written on purpose focusing about triangular UFO sighting reports.
Marler became Mutual UFO Network’s field investigator trainee in 1990 and eventually promoted as state director in Illinois. Now, he is working in a multi-national medical company, living in Albuquerque, N.M. and spending his spare time as an independent investigator.
In 2012, he was one of the speakers at the Ozark UFO Conference in Eureka Springs, Ark. Many people asking him about his book after his talk in the conference but he did not have one during that time. The idea of writing came after that moment.
Marler said that he want to know the truth by following the evidence very closely. He added that he will not use the UFO subject as a vehicle to look for an alternative religion or spiritual path as many others did.
Marler particularly curious about the military explanation and shy extra-terrestrial theory. He pointed out that most unexplained objects in the sky are considered by some as classified military aircraft but it is quite strange the military is not using these amazing aircraft. Meanwhile, he said that the shy extra-terrestrial theory is also interesting. In this theory, the aliens are shy to meet with people. However, Marler is wondering why these aliens keep on running around in the sky flashing lights.
Marler hopes to keep on investigating about UFO sightings and find new information. His book is now available in the bookstore and online stores. It is published by Richard Dolan Press.