David Marler has had a lifelong interest in the UFO subject and has actively investigated and researched it for 30 years. He joined The Mutual UFO Network (MUFON) in 1990 as a Field Investigator Trainee. Since then, he has served as Field Investigator, State Section Director, as well as Illinois State Director. David is an internationally recognized independent UFO researcher. During his tenure with MUFON, he conducted numerous investigations into alleged UFO sightings and related experiences.
He has also lectured on the subject to various school and adult audiences including at the university level. David has assisted the History, Learning, Discovery, Science, and Smithsonian Channel on UFO documentaries over the years in addition to independent productions. David has one of the largest personal libraries of UFO books, journals, magazines, newspapers, and case files from around the world that covers the last 75+ years. With this, he has been examining the detailed history of UFO sighting reports and related patterns.