Switzerland - Heidi Knobel, 16, Yverdon-les-Bains, 30 Aug 1976

Vous écrivez très bien l'anglais!

Est-ce la famille la cherche encore? Exist-il un page Facebook pour Heidi de votre connaissance?

Hi and welcome @Bagpus. As far as I know she is still an active missing person. I'm not sure her family is actively searching for her through (social) media right now or have done in the past, but I'm sure they still want to know what happened to Heidi. I never found a FB page about her missing case. There is not much out there.
 
Hi !

So, I would try to resume what I’ve understood and what I could say about Heidi Knobel’s case:

- Heidi Knobel was “au pair”: it’s a system well known in Switzerland, a young goes in different area to learn or perfectionate a language (we have fours languages in Switzerland), the person works as housekeeper/kidkeeper and live with the family.
So, Heidi arrived the 15 juillet in Yverdon, she was for around 1 month and 15 days there when she disapperead. I think it includes that she knews the city, but not very well.

- The city where Heidi’s family lives is 288 km far from Yverdon

- Between the hospital and Haldimand Street there is circa 12 minutes by foot

- We know what she was wearing the 30th august in the morning:
o Blue trousers (like jeans, maybe dark blue)
o Dark pullover (maybe dark blue or dark brown)
o Leather moccasins (dark purple or rusty brown)
o She had a gold chain, a bracelet and rings

- After the hospital, Heidi went to Haldimand Street, where she let ID and her bag. She begun cleaning or other house’s tasks, and we don’t know what happened after….

I live in the French part of Switzerland, but I could try to check the swiss-german press. I found nothing on Facebook, but I read that in 2009 Heidi’s case was the oldest unsolved disparition in Switzerland, so it was still running.

After this point, I have couple of questions:

- Where and who is M. Cosandey? We heard about Mrs and the children, but was a man in the “au pair” house?

- Do we know something about Laurence Levha (the other disappeared girl in the news paper)? They had circa the same age, the disappearance happened in the same period. If Laurence disappeared in Lausanne, she lived in Les Tuileries, which is close to Yverdon…. Hitchhiking?

- Yverdon is “nearby” the French border, is there a Jane Doe in Doubs area in the same period?
 
@SedunCH You are making great points.
Since you are in the area of Yverdon, maybe the city archives could lead to some informations concerning Mrs Cosandey and a potential husband ?

As for the other Jane Does in doubs, you can try to check if the Doe Network has any profile listed.

I would also look through the situation in the area at that time (other similar things for example, such as Levha's story, in france and switzerland).
 
Good evening (for me) everyone,

Just a short post to give you some new informations:

I made any extra searches, and I have other informations about the woman for who Heidi Knobel worked.

In fact, the building where they were was new, I think the first rental happened in 1976, and Mrs Cosendai left in January or February 1977.

But I found what she became: in fact in April 1977 she became a kind of CEO in the Yverdon’s Therm Center. Which one is just near the hospital. I think the Therm Center was built around those year, but I’m not sure at the moment.

I have some other research waiting, I give you news if I see something interessant!

Have a good evening!

P.S. Yes, the newspaper wich talked about Heidi’s disappearance write wrong the name of Heidi’s “boss”, it’s Cosendai and not Cosandey (more common in Vaud area I believe).
 
Good evening (for me) everyone,

Just a short post to give you some new informations:

I made any extra searches, and I have other informations about the woman for who Heidi Knobel worked.

In fact, the building where they were was new, I think the first rental happened in 1976, and Mrs Cosendai left in January or February 1977.

But I found what she became: in fact in April 1977 she became a kind of CEO in the Yverdon’s Therm Center. Which one is just near the hospital. I think the Therm Center was built around those year, but I’m not sure at the moment.

I have some other research waiting, I give you news if I see something interessant!

Have a good evening!

P.S. Yes, the newspaper wich talked about Heidi’s disappearance write wrong the name of Heidi’s “boss”, it’s Cosendai and not Cosandey (more common in Vaud area I believe).

Thanks. Good to know....I was looking too yesterday, but using the name Cosandey, also a very common name in Switzerland I believe. How do you know the name is Cosendai, if I may ask?
 
Christine Marlot : Disappeared from Auxerre (fairly close to Swiss border) jan 1977 at age 15

660DFFRA - Christine Marlot

"Her disappearance has been linked to the disappearances of six other young women from the Auxerre area. They all had slight learning difficulties and attended the same special education center in Auxerre. Madelaine Dejust , Chantal Gras , Bernadette Lemoine , Christine Marlot , Martine Renault and Jacqueline Weis
(...)
They are suspected to be victims of a serial killer."

"Bernadette Lemoine disappeared from Monneteau, close to Auxerre, France in March 1978. She disappeared together with her sister, Francoise after staying for several nights in a hotel room booked by an unidentified man."

Claire-Lise Pickel : Disappeared july 1978 from La-Chaux de Fonds, close to french border at age 19
554DFCHE - Claire - Lise Pickel
 
Christine Marlot : Disappeared from Auxerre (fairly close to Swiss border) jan 1977 at age 15

660DFFRA - Christine Marlot

"Her disappearance has been linked to the disappearances of six other young women from the Auxerre area. They all had slight learning difficulties and attended the same special education center in Auxerre. Madelaine Dejust , Chantal Gras , Bernadette Lemoine , Christine Marlot , Martine Renault and Jacqueline Weis
(...)
They are suspected to be victims of a serial killer."

"Bernadette Lemoine disappeared from Monneteau, close to Auxerre, France in March 1978. She disappeared together with her sister, Francoise after staying for several nights in a hotel room booked by an unidentified man."

Claire-Lise Pickel : Disappeared july 1978 from La-Chaux de Fonds, close to french border at age 19
554DFCHE - Claire - Lise Pickel

Do you think the disappearance of Heidi has a link or could have a link to this girls, who are supposed to be killed by a man called Emile Louis? They were all girls with mild mentally disabled and in the care system.

Les sept disparues
Qui étaient les victimes d'Emile Louis
 
Do you think the disappearance of Heidi has a link or could have a link to this girls, who are supposed to be killed by a man called Emile Louis? They were all girls with mild mentally disabled and in the care system.

Les sept disparues
Qui étaient les victimes d'Emile Louis

Since Emile Louis was only arrested in 1981 he might aswell have crossed the border... I think there is a small possibility that the cases are connected.
 
Of course you can ask

I was looking for information about the building in wich Heidi was in Yverdon. I read an ad for an apartment for rent, with the name of Cosendai. With a second search with “Cosendai”, I obtained another article about the new CEO of the Therm Center, who has the same first name, the same previous job, and 2 kids, like Mrs Cosandey in the article about Heidi’s disappearance.

P.S. But I’ve made a mistake, in 1976, the Hospital wasn’t near the Therms Center (the hospital was built next years). In 1976, the hospital was circa 20 minutes by foot from Haldimand 51, where Heidi lived.
 
Last edited:
Of course you can ask

I was looking for information about the building in wich Heidi was in Yverdon. I read an ad for an apartment for rent, with the name of Cosendai. With a second search with “Cosendai”, I obtained another article about the new CEO of the Therm Center, who has the same first name, the same previous job, and 2 kids, like Mrs Cosandey in the article about Heidi’s disappearance.

P.S. But I’ve made a mistake, in 1976, the Hospital wasn’t near the Therms Center (the hospital was built next years). In 1976, the hospital was circa 20 minutes by foot from Haldimand 51, where Heidi lived.

Is it possible to put a link/source in.....we are supposed to back things up on here...
 
Hallo zusammen, würdet ihr euch diesen Fall genauer ansehen, es geht um einen unbekannten Todesfall aus dem Jahr 1991. Ich finde viel Ähnlichkeit mit Heidi Knobel, Haare könnten gefärbt werden.
Sendung vom 16. März 2022: Aktenzeichen XY: Die Tote von der A3 – ein Rätsel seit 1991 | shz.de

Hi and welcome @Avalonsfee. Thank you for joining.

Sadly the article is behind a paywall, so I can't read it. This is another one about the case:


Tote von A3: Altes Foto aus Kölner Kneipe bei Aktenzeichen XY

A body found on the A3 in 1991 has occupied investigators for more than 30 years. Can she finally be identified thanks to a photo from a Cologne pub?

The dead nobody knows. In the summer of 1991, the body of a young woman was found on the A3, just before the Neustadt (Wied) exit in Rhineland-Palatinate. Despite extensive investigations, she has not yet been identified. But in the meantime a hot trail leads to Cologne.

On Wednesday (March 16, 2022) police released an old photo from a pub showing a woman who closely resembles the dead woman. She sits at the counter of the former "Brückeck" on Severinsbrücke - that's where Cologne's Miljö used to meet.

Wednesday evening (March 16, 2022) the case was the subject of the ZDF program " Aktenzeichen XY ". The photo from the Cologne pub, taken in 1983, also played a major role. Who is the unknown dead and why did she have to die? The investigators at the Neuwied Criminal Police Office are very hopeful that they will finally be able to clarify the fate of the unknown dead.

"The photo is currently our most important lead," explained Chief Inspector Stephan Bach from the Kripo Neuwied on the show. He's the investigator in charge of the case.

This is the "living" picture they are talking about:

9529d434-81ac-4a2e-9471-e9d032c302ab.jpeg


Picture of Heidi

2559DFCHE.jpg



The woman who can be seen in the old photo is said to have often been to the “Brückeck” restaurant with a “Helmut” and lived with him in Cologne for two to three weeks in the 1980s. That's what the investigation revealed.

Investigator Bach: "About 40 years ago, Helmut was allegedly suspected of having killed his wife, but was said to have been acquitted at the time. We're looking for him as an important witness. He could help us clarify the identity of the woman from the bar."

There is more....*warning....PM picture in article*

(snipped)

According to the police description, the dead woman has several old scars
On the day of death, August 7, 1991, the unknown woman looked like this:
  • between 20 and 30 years old, more in the range of 20 years Heidi DOB July 21, 1960, would be approx 31 in 1991
  • 1.74 meters tall and slim at 65 kilos Heidi N/A
  • up to three centimeters long, straight, blond hair Heidi dark hair, could have colored her hair
  • blue eyes Heidi unknown
  • numerous old scars on arms and legs, on the right upper arm two vaccination scars in a typical place Heidi N/A
  • she had at least one pregnancy
  • conspicuous bone growth the size of a cherry stone above the left ear Heidi N/A
  • dressed in beige wool tights, a sleeveless red and white dress with a green floral pattern, red bathing sandals with green, blue and yellow splashes of color, no bra, no panties
  • Jewelry: silver earring in left ear, (Heidi seems to have pierced ears) silver necklace with a small Dutch shoe as a pendant (interesting), silver-colored ring on right ring finger, copper-colored Swatch wristwatch
Maybe it's an idea to make a thread for this particular case on WS. Genetic DNA research could be the solution if there are still identifiers. What is the status on that in Germany?

It's hard to tell if this woman is Heidi, for now I don't immediately say "Yes, this is a possible".
 
Es wurde festgestellt, dass die Todesfälle mit größerer Wahrscheinlichkeit in der Westschweiz aufgewachsen sind. Außerdem steht in Heidis Artikel etwas über einen Verlobten. Auf dem Bild in der Kneipe sitzt ihr ein Mann gegenüber, dunkle Hautfarbe. Allerdings halte ich es eher für eine Frau, ich kenne keinen Mann, der seine Zigarette so hält.
Heidi had a procedure in a clinic? Abortion? The death was pregnant at least once. Is it possible to find out what jewelry she was wearing? The family still seems to be alive?
 
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Es wurde festgestellt, dass die Todesfälle mit größerer Wahrscheinlichkeit in der Westschweiz aufgewachsen sind. Außerdem steht in Heidis Artikel etwas über einen Verlobten. Auf dem Bild in der Kneipe sitzt ihr ein Mann gegenüber, dunkle Hautfarbe. Allerdings halte ich es eher für eine Frau, ich kenne keinen Mann, der seine Zigarette so hält.
Heidi had a procedure in a clinic? Abortion? The death was pregnant at least once. Is it possible to find out what jewelry she was wearing? The family still seems to be alive?

Translated:

The deceased was found to be more likely to have grown up in western Switzerland. Also, Heidi's article says something about a fiancé. In the picture in the bar, a dark-skinned man is sitting across from her. However, I think it's more for a woman, I don't know any man who holds his cigarette like that.
 
Translated:

The deceased was found to be more likely to have grown up in western Switzerland. Also, Heidi's article says something about a fiancé. In the picture in the bar, a dark-skinned man is sitting across from her. However, I think it's more for a woman, I don't know any man who holds his cigarette like that.

OT Thank you @annpats to take the time to translate. Having Dutch as my mother tongue and have been fortunate to learn many languages in school, German is no problem for me but.....Maybe we should agree on posting in English as the main language of this site is English. I'm sure can do that @Avalonsfee :)

Interesting isotopes? showed she grew up in Switzerland. Heidi's fiancé has always been a question mark. From the top of my head, wasn't he working/studying in South Africa at the time?
 
Bumping up this interesting case for a new look in 2024.

Just out of curiosity I checked to see if Heidi has a profile at Interpol's Yellow Notices, but I could not find one for her.
 
Hi and welcome @Avalonsfee. Thank you for joining.

Sadly the article is behind a paywall, so I can't read it. This is another one about the case:


Tote von A3: Altes Foto aus Kölner Kneipe bei Aktenzeichen XY

A body found on the A3 in 1991 has occupied investigators for more than 30 years. Can she finally be identified thanks to a photo from a Cologne pub?

The dead nobody knows. In the summer of 1991, the body of a young woman was found on the A3, just before the Neustadt (Wied) exit in Rhineland-Palatinate. Despite extensive investigations, she has not yet been identified. But in the meantime a hot trail leads to Cologne.

On Wednesday (March 16, 2022) police released an old photo from a pub showing a woman who closely resembles the dead woman. She sits at the counter of the former "Brückeck" on Severinsbrücke - that's where Cologne's Miljö used to meet.

Wednesday evening (March 16, 2022) the case was the subject of the ZDF program " Aktenzeichen XY ". The photo from the Cologne pub, taken in 1983, also played a major role. Who is the unknown dead and why did she have to die? The investigators at the Neuwied Criminal Police Office are very hopeful that they will finally be able to clarify the fate of the unknown dead.

"The photo is currently our most important lead," explained Chief Inspector Stephan Bach from the Kripo Neuwied on the show. He's the investigator in charge of the case.

This is the "living" picture they are talking about:

9529d434-81ac-4a2e-9471-e9d032c302ab.jpeg


Picture of Heidi

2559DFCHE.jpg



The woman who can be seen in the old photo is said to have often been to the “Brückeck” restaurant with a “Helmut” and lived with him in Cologne for two to three weeks in the 1980s. That's what the investigation revealed.

Investigator Bach: "About 40 years ago, Helmut was allegedly suspected of having killed his wife, but was said to have been acquitted at the time. We're looking for him as an important witness. He could help us clarify the identity of the woman from the bar."

There is more....*warning....PM picture in article*

(snipped)

According to the police description, the dead woman has several old scars
On the day of death, August 7, 1991, the unknown woman looked like this:
  • between 20 and 30 years old, more in the range of 20 years Heidi DOB July 21, 1960, would be approx 31 in 1991
  • 1.74 meters tall and slim at 65 kilos Heidi N/A
  • up to three centimeters long, straight, blond hair Heidi dark hair, could have colored her hair
  • blue eyes Heidi unknown
  • numerous old scars on arms and legs, on the right upper arm two vaccination scars in a typical place Heidi N/A
  • she had at least one pregnancy
  • conspicuous bone growth the size of a cherry stone above the left ear Heidi N/A
  • dressed in beige wool tights, a sleeveless red and white dress with a green floral pattern, red bathing sandals with green, blue and yellow splashes of color, no bra, no panties
  • Jewelry: silver earring in left ear, (Heidi seems to have pierced ears) silver necklace with a small Dutch shoe as a pendant (interesting), silver-colored ring on right ring finger, copper-colored Swatch wristwatch
Maybe it's an idea to make a thread for this particular case on WS. Genetic DNA research could be the solution if there are still identifiers. What is the status on that in Germany?

It's hard to tell if this woman is Heidi, for now I don't immediately say "Yes, this is a possible".
Hi @Bit of hope ,

Thanks for your synthesis.

I can add some informations :

  • Heidi was around 170 cm and slim
  • She had dark brown eyes
https://www.scriptorium.ch/zoom/10688/view?page=20&p=separate&tool=info&view=0,4515,1160,1147
 

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