Jessup attempted to make a living writing on the subject of UFOs, but his follow-up books did not sell well and his publisher rejected several other manuscripts. In 1958 his wife left him, and his friends described him as being somewhat unstable when he traveled to New York. After returning to Florida, he was involved in a serious car accident and was slow to recover, apparently increasing his despondency. On April 19, 1959, Jessup contacted Dr. Manson Valentine and arranged to meet with him the next day, claiming to have made a breakthrough regarding an event known as the Philadelphia Experiment. However, on April 20, 1959, Jessup was found dead in Dade County, Florida, with a hose between the exhaust pipe and a rear window of the vehicle, filling the car with toxic exhaust fumes.
What we have here is a case where almost all of the aspects of the UFO problem are involved.
This is a UFO observation report by a pilot.
This is a UFO close encounter.
This is a daylight UFO observation.
This is case were the reported UFOs are observed at close sight and are solid objet of obvious artificial construction.
This is a report of a near air collision between an aircraft and UFOs.
This is a report of UFO that have a behaviour which is suggesting intelligent control.
This is a case of physical effects on an aircraft.
This is a radar/visual case, where a visual sighting is confirmed by independant people detecting the presence of the objects on a detection device.
This is a case where the UFOs fly away in direction of Mount Popocatepetl, obviously a hotbed of UFO reports and allegedly some sort of hideout for extraterrestrial aircraft.
This is a case where a pilot reports his encounter publicly.
This is a case where the witness has been medically checked and interviewed. If Hynek could not speak to Los Santos Montiel, at least Jerome Clark and others could.
This is a case where the witness stood firm with his account over time.
This is a case where the witness reports that he has been repeatedly intimidated by unidentified people probably from a foreign country (UFO folklore call them "Men in Black").
WYVE News Director and UFO witness Danny Gordon. Received countless late night phone calls, some of them threatening. His house was broken into, bogus reporters had visited his home, finally his UFO negatives from the photographs he took had disappeared