This is a list of open missing person cases from 2018 to 2020 in alphabetical order. 
To see may latest cases, visit this page. To request a case to be opened, visit this page.



Joseph Laurence Halpern

Missing person located July 2020
Missing person located July 2020
Missing person located July 2020

Halpern, approximate photo date 1933

Missing since: 08/15/1933

Missing location: Aspen, Colorado

Type of missing case: Lost/Injured Missing

Gender: Male

Ethnic group: White

Date of Birth: 09/11/1910 (109)

Age at time of disappearance: 22 years old

Height / Weight: 5'8, 165 pounds

Description, clothing, tattoos, other identifying markings: A light blue shirt or a white shirt with blue stripes, light brown pants and heavy shoes or mukluks. He usually doesn't wear a hat.

Other characteristics: Caucasian male. Brown hair, brown eyes. Halpern's right eye is crossed and he has a slight scar above it. His nickname is Teacher and he may use the alias name Louis Hollenbuck. Halpern is fluent in French and German. He is a non-smoker.

Details at time of disappearance: Halpern was last seen hiking near Taylor Peak in Rocky Mountain National Park on August 15, 1933. He had gone camping in the region with a friend. He began hiking up Taylor Peak alone, carrying an Army knapsack. He has never been heard from again.
Halpern's friend notified authorities when he failed to return from his hike. In the days that followed, a snowstorm hit the area. An extensive search of the mountains turned up no sign of him.
Following Halpern's disappearance, there were unconfirmed sightings of him all over the country: in Phoenix, Arizona in December 1933 traveling with the Civilian Conservation Corps near Alliance, Nebraska in May of 1935 and traveling with the Lewis Brothers Circus in Detroit, Michigan in the summer of 1935. None of these reports were ever substantiated.
Halpern was a graduate student at the University of Chicago at the time of his disappearance, and had a summer job at an observatory in Wisconsin. He's talented in mathematics, chemistry, astronomy and chess.
Authorities are no longer actively investigating Halpern's case due to the passage of time, but they have taken DNA from his relatives to identify his body if it is ever located.

Other case information

Agency in charge: Colorado Bureau of Investigation
Glendale Police Department
Other information: NamUs
The Doe Network
The Waterloo Daily Courier
The Greeley Daily Tribune
Psychic detective links: https://briansprediction.com/missing/

Revised: October 12, 2004. Last updated March 2, 2012 middle name spelling corrected, distinguishing characteristics, clothing/jewelry description and details of disappearance updated.