Four scientists. Four wilderness settings. Six decades. Four continents of terrain between them. None ever found. And a fifth disappearance — in the same mountain range — that the pattern did not predict but cannot be separated from.
Antarctica · Arizona · Washington State · California, 1965–2013
In April 2026 — the same month the FBI formally announced its investigation into the deaths and disappearances of American scientists — David Paulides released a video compilation titled Four Missing German Physicists. Paulides had been identifying the sub-pattern for years before that release; in a widely circulated podcast interview, he stated plainly: "Of all the physicists missing, they were also German." He described a series of physicists who had disappeared "under strange, strange circumstances and were never found."
This chapter documents each case in the sub-pattern, in chronological order, using the verified primary and secondary record. Where Paulides' published characterizations diverge from that record, the discrepancy is noted transparently and the documented facts are presented. The sub-pattern, as established by the verified evidence, is real and significant — but it is best served by precise documentation, not amplification.
Byrd Station, Antarctica — May 8, 1965
| Date | May 8, 1965 · approx. 9:15 a.m. |
| Location | Byrd Station, Antarctica · 600 miles from South Pole |
| Age | 26 |
| Employer | National Bureau of Standards / CRPL Boulder |
| Research | Ionospheric forward scatter; radio propagation studies |
| Conditions | –45°F / –42°C; strong winds; polar darkness |
| Distance | 2.1 km between radio noise lab and main station |
| Search | Extensive; flares fired; human chain formed across runway |
| Remains | Never recovered |
| Status | Presumed dead May 14, 1965. Disch Promontory named in honor. |
Carl Disch was 26 years old and a member of the National Bureau of Standards' 1964–65 Antarctic research team, deployed to Byrd Station as part of the United States' contribution to the Year of the Quiet Sun — a coordinated international scientific program studying solar activity during a period of low ebb. His assignment was to monitor and log data on ionospheric forward scatter at the Radio Noise Laboratory, a facility located approximately 1.25 miles — 2.1 kilometers — from the main Byrd Station complex. A handline rope stretched between the two buildings existed specifically to prevent personnel from becoming disoriented in whiteout conditions.
On the morning of May 8, 1965, Disch left the Radio Noise Laboratory at approximately 9:15 a.m. to return to the main station. The conditions were severe: temperature at –45°F, strong winds, polar darkness. Disch had made this 2.1 km crossing repeatedly over six months of deployment. He was warmly dressed in polar gear. The walk, under normal conditions, would have taken no more than thirty minutes. When Disch had not arrived within a reasonable time, a rescue party departed from the main station. Station personnel fired flares. A human chain was formed to systematically search the snow-covered runway where initial footprints were found. The footprints were followed briefly but were erased by drifting snow before they could be traced to a conclusion. No further trace of Carl Disch was ever found. He was officially presumed dead on May 14, 1965, six days after his disappearance. A geographic feature in Antarctica — the Disch Promontory — is named in his honor. In 1971, a message claiming to be from Disch was received at McMurdo Station; it was investigated and dismissed as a hoax.
What makes the Disch case relevant to this series — beyond the physicist profile — is the structural template it establishes: a highly trained, experienced scientist who knew his terrain, vanishing in the time it should have taken to walk a known route, leaving footprints that led nowhere and no recoverable physical trace despite an organized and immediate search. That template, with variations in geography and climate, recurs.
Olympic National Park, Washington State — January 20, 1992
| Date | January 20, 1992 |
| Location | Sol Duc area, Olympic National Park, Washington |
| Age | 23 |
| Origin | Bad Oeynhausen, Germany |
| Status | Fulbright Scholar, Oregon State University |
| Plan | Solo day hike: Sol Duc Hot Springs to Hoh River trailhead — 23–24 miles |
| Equipment | Jeans, shirt, windbreaker; day pack with fruit only. No overnight gear, no hat, no gloves. |
| Separated from | German hiking companion, who departed separately |
| Reported missing | January 21, 1992 — friend reported when Bissert failed to arrive |
| Remains | Never recovered |
Stefan Bissert was a 23-year-old German national from Bad Oeynhausen, Germany — a Fulbright scholar studying at Oregon State University. On January 20, 1992, he and a German hiking companion entered the Sol Duc area on the west side of Olympic National Park with plans to hike to Deer Lake, a four-mile round trip. For reasons that have not been definitively established, the two separated. Bissert then apparently decided to attempt a solo traverse of the park — a 23-to-24 mile hike from Sol Duc Hot Springs, over High Divide, and out to the Hoh River trailhead. This route crosses into the high alpine interior of the Olympic Peninsula, one of the most remote and rugged wilderness environments in the continental United States.
He was wearing jeans, a shirt, and a windbreaker. He carried a day pack containing only a few pieces of fruit. He had no hat, no gloves, no overnight gear, no emergency equipment. A winter storm had been moving through the area all week, with temperatures below freezing and significant snowpack at elevation. When Bissert failed to arrive at the Hoh River trailhead, his companion reported him missing on January 21. A search was launched. Olympic National Park, at the time, had no consolidated search-and-rescue protocols for its interior — a deficiency later documented in a 2017 Peninsula Daily News investigation. Stefan Bissert was never found. No remains, no clothing, no equipment, no trace has been recovered in the 33 years since his disappearance.
The Peninsula Daily News reported that at least four people have disappeared in Olympic National Park without trace in a 21-year span — and that a family member of another missing person was subsequently contacted by a paranormal researcher who raised the possibility of non-conventional explanations. The family member's response: her missing relative "would be the first one aboard" if a spacecraft were involved. This detail is included not as evidence but as context for how these cases are experienced by those left behind — and how conventional explanations fail to provide closure.
The most conventional explanation for Bissert's disappearance is death by exposure: hypothermia in severe winter conditions, inadequately equipped for the terrain and weather. This explanation is plausible and consistent with the physical circumstances. What it does not account for is why, in 33 years of searches — including organized efforts with modern equipment — not one piece of physical evidence, no clothing fiber, no bone fragment, no trace material has ever been located in a national park whose trails and backcountry see regular use. The Olympic Mountains, despite their remoteness, have returned remains and equipment from other fatalities over the same period. The complete absence of trace from Bissert's disappearance has not been explained.
Navajo Reservation / Little Colorado River Gorge, Arizona — April 2007
| Date | Early April 2007 |
| Location | Navajo Reservation, Coconino County, Arizona |
| Vehicle found | Near rim of Little Colorado River Gorge, west of Tuba City, ~2 miles from Hell Hole Bend |
| Nationality | German citizen |
| Occupation | Physicist, Germany |
| Prior visits | Multiple — knew the Colorado Plateau well |
| Physical condition | Experienced hiker; described as in good physical condition |
| Missed contact | Failed to meet girlfriend in Las Vegas, Nevada on April 9 |
| Search initiated | April 12, 2007 — lasted 6 days, covered 56 square miles |
| Remains | Never recovered. Case open. |
Reinhard Kirchner was a German physicist who had visited the United States multiple times and hiked the Colorado Plateau extensively. He knew this terrain. In early April 2007, he was hiking a remote section of the Navajo Reservation in Coconino County, Arizona — an area he was familiar with from prior trips. He was an experienced hiker in good physical condition. He failed to meet his girlfriend at an arranged rendezvous in Las Vegas, Nevada on April 9. The search for him was initiated on April 12.
That day, his rented truck was found near the rim of the Little Colorado River Gorge — west of Tuba City, approximately two miles from Hell Hole Bend. The gorge area is characterized by extensive sinkholes, some of which drop to considerable depth. These sinkholes were specifically identified by searchers as too dangerous to physically enter; searchers instead used cameras to look into them. An intensive six-day search covered 56 square miles of terrain. Nothing was found. No clothing. No equipment. No remains. No indication of which direction Kirchner had traveled from his vehicle.
Kirchner's case is listed in the Charley Project — an independent database of unsolved missing persons cases cross-referenced by law enforcement. His case has been formally adopted by David Paulides as a Missing 411 case, documented in his published series under the title Missing German Physicist in the Arizona Desert. The case remains open. He is presumed to have gotten lost in the area, but that presumption is based on the absence of other evidence, not on any positive finding of what occurred.
"And this physicist was visiting from Germany, and he took off down the trail — and eventually the guy got back to the lodge and the physicist wasn't there. A huge search of the entire area for weeks. The German physicist was never found."
— David Paulides, recorded interview describing one of the physicist cases, iHeart Radio / Stuff They Don't Want You to KnowEditorial note on sourcing: In this recorded interview, Paulides described a German physicist who disappeared "in the mountains above Los Angeles" — a detail that does not match the Kirchner case (Arizona desert) and does not precisely match the documented Krost case (Lake Arrowhead, San Bernardino Mountains). His description may represent an imprecise recollection of the Krost case, a conflation of two separate cases in retelling, or a reference to a fifth physicist case not yet in the documented public record. This ambiguity is flagged and resolved as follows: the specific claim from the Paulides podcast is treated as [C3] and is not used as a primary source for any case documentation in this chapter. All specific case facts — dates, locations, subjects, circumstances — are drawn exclusively from independently verified primary and secondary sources documented in the footnotes. Readers encountering Paulides' account elsewhere should be aware that his podcast description does not precisely match any single case in the verified record.
San Bernardino Mountains, California — October 1, 2013
| Date | October 1, 2013 — approx. 5:45 p.m. |
| Location | Pinnacle Trail, North Lake Arrowhead, San Bernardino County, California |
| Mountain range | San Bernardino Mountains — Southern California |
| Nationality | German |
| Institution | University of Magdeburg, Germany |
| Age | 62 |
| Reason in California | Academic conference at UCLA Conference Centre, Lake Arrowhead Resort |
| Hiking party | Separated from group of approximately 20 hikers |
| Equipment | Described as experienced hiker and hunter; no specialized hiking gear at time of separation |
| Remains | Never recovered. Case open. |
Aloys Jakob Krost was a 62-year-old professor of physics at the University of Magdeburg in Germany. He was in Southern California in late September and early October 2013 to attend an academic conference hosted at the UCLA Conference Centre at the Lake Arrowhead Resort — a facility situated in the San Bernardino Mountains above Los Angeles, at elevation approximately 5,100 feet. He was by all accounts an experienced hiker and hunter, familiar with demanding terrain. On October 1, 2013, Krost joined a hiking group of approximately 20 people for a trail excursion on the Pinnacle Trail in the North Lake Arrowhead area of San Bernardino County.
At approximately 5:45 p.m., Krost became separated from the group. He was not carrying specialized hiking equipment at the time of separation. When the group realized he was not among them, a search was initiated. The San Bernardino County Sheriff's Department was notified. More than 20 search personnel, air support, and search dogs combed the mountainous terrain — covering a 10 square mile area facing the Mojave Desert. Nothing was found. Krost's disappearance was reported by NBC Los Angeles. He has never been heard from again. The Charley Project lists his case as open and unsolved, with the presumption that he was lost in the wilderness — a presumption based, as in the Kirchner case, on the absence of other explanations rather than any positive finding.
The Krost disappearance (October 2013, San Bernardino Mountains) and the Monica Reza disappearance (June 2025, San Gabriel Mountains) occurred within the same mountain ecosystem above Los Angeles — two ranges of the same Transverse Ranges geological system, approximately 60 miles apart by road, sharing terrain characteristics including elevation, granite geology, and trail corridor patterns. Both subjects were experienced in their respective outdoor activities. Both were separated from companions. Both vanished without recoverable trace despite extensive searches. Krost was visiting for a professional academic conference; Reza was the sitting Director of Materials Processing at NASA's Jet Propulsion Laboratory. The 12-year separation between their disappearances in the same mountain system is a documented geographic fact, not an interpretation. Whether that geographic proximity is coincidental, statistically significant, or indicative of something else entirely cannot be determined from available public evidence and is presented here as [LI] — a logical inference from verified data that the reader may evaluate independently.
A Systematic Comparison Across Six Decades
Four cases. Antarctica, Washington, Arizona, California. 1965 to 2013. No obvious institutional connection between any of the subjects. No common employer, no common research program, no shared professional network in the verified record. What they share is structural.
| Profile Point | Disch (1965) | Bissert (1992) | Kirchner (2007) | Krost (2013) |
|---|---|---|---|---|
| German / European origin | American (Paulides misidentified as German) | ✓ German national | ✓ German citizen | ✓ German professor |
| Physicist / high intellect | ✓ Ionospheric physicist | ✓ Fulbright scholar | ✓ Physicist | ✓ Physics professor |
| Experienced in terrain | ✓ 6-month deployment, repeated crossings | Partial — ambitious solo route | ✓ Multiple prior visits, knew plateau | ✓ Experienced hiker and hunter |
| Separated from companions | ✓ Solo crossing, colleagues at station | ✓ Separated from hiking companion | Solo / vehicle found without him | ✓ Separated from group of ~20 |
| No remains recovered | ✓ | ✓ 33 years, nothing | ✓ 6-day / 56 sq. mi. search | ✓ |
| Extensive search, nothing found | ✓ Human chain, flares | ✓ Extended SAR | ✓ 56 sq. miles | ✓ 20+ SAR, air support, dogs |
| Visiting for professional purpose | ✓ Antarctic research deployment | ✓ Fulbright academic exchange | Leisure / prior visits | ✓ Academic conference, UCLA |
| Government / academic affiliation | ✓ National Bureau of Standards | ✓ Fulbright Program (U.S. Dept. of State) | ✓ German research physicist | ✓ University of Magdeburg |
The correction of the Disch/Risch misidentification removes one German physicist from the sub-pattern and replaces him with an American physicist. This does not dissolve the pattern — three confirmed German nationals (Bissert, Kirchner, Krost) across three decades remain — but it does require an honest recalibration. The sub-pattern is real. It is not as perfectly uniform as Paulides' original framing suggested. What survives the correction: three German physicists or physics-level academics, all male, all vanishing in wilderness terrain in the United States between 1992 and 2013, none ever found. What is added by the correction: a fourth physicist (American) in 1965 who shares every structural characteristic of the pattern except German nationality, suggesting that the common variable may be professional profile and visitor status — rather than German heritage specifically — though the German concentration in the confirmed cases remains notable and unexplained.
Angeles National Forest, San Gabriel Mountains — June 22, 2025
Monica Reza was not German. She was not a physicist in the strict disciplinary sense. She was a materials scientist and engineer — a co-inventor of a proprietary nickel-based superalloy, Mondaloy, used in American rocket engines, the sitting Director of Materials Processing at NASA's Jet Propulsion Laboratory, and a career researcher with 37 years of classified aerospace work. She vanished on June 22, 2025, in the San Gabriel Mountains — the next range west of the San Bernardino Mountains where Alois Krost disappeared in 2013. Sixty miles apart, by road, in the same mountain system above the same city.
Monica Reza, 60, was last seen at 9:10 a.m. on June 22, 2025, hiking in the Mount Waterman area of Angeles National Forest. She was hiking with companions from her yoga group. Witnesses stated that she was approximately 30 feet behind her male companion on the trail, "smiling and waving." When he turned around a moment later, she was gone. Search efforts deployed drones, K9 units, helicopters, and ground teams over multiple days. The Los Angeles County Sheriff's Homicide Bureau was involved from the early stages — an unusual involvement for a missing hiker that investigators have not publicly explained. Search dogs tracked her scent only to an abandoned hat; no trail continued beyond that point. No remains, no clothing, no equipment has been recovered. Her case remains open as a missing persons investigation. The House Oversight Committee's April 2026 letter to the FBI identifies Reza specifically as a subject of national security concern, noting her professional link to retired Air Force Major General William Neil McCasland through an Air Force–funded advanced materials research program in the early 2000s.
Reza scores ten of the eleven established Paulides profile points: high intellect and professional distinction; experienced outdoor practitioner; separation from companions in moments; anomalous pre-disappearance behavior (running on steep terrain); no remains recovered; dogs failed to track beyond a single recovered item; Southern California mountain terrain; visiting the range as part of a recurring recreational practice. The one profile point she does not score is German heritage.
But here is what the pattern record suggests, after correction: the common thread is not German heritage. The common thread is a specific type of person — highly educated, technically trained, operating at or near the classified frontier of their field, physically capable, familiar with their environment — vanishing in wilderness without trace. German physicists appear with anomalous frequency in that profile. Reza fits it precisely. And the mountain range where she disappeared is the next valley over from where Alois Krost, a German physics professor attending an academic conference, walked off a trail in 2013 and was never seen again.
"Germans or people with German heritage seemed to disappear at a higher percentage than the norm. And of all the physicists missing — they were also German."
— David Paulides, iHeart Radio interview · Stuff They Don't Want You to KnowThe pattern documented in this chapter establishes a real, verifiable, multi-decade sub-series of disappearances sharing specific structural characteristics. It does not establish cause. It does not establish connection between cases. It does not establish that the subjects knew one another or were targeted by a common actor. The conventional explanation — that experienced people in demanding terrain sometimes disappear, and that physicists and academics are overrepresented in wilderness activities as a demographic — cannot be ruled out from the available evidence. What the conventional explanation does not account for is the consistent absence of remains across all four cases over a combined span of more than thirty years of subsequent wilderness use in the same locations, or the clustering of these cases in specific geographic corridors. This publication presents those facts. The reader is left with the documented record.