But where has Anne-Frédéric Obszynski, a 41-year-old teacher working in Franconville (Val-d'Oise) and who lives in Taverny?
How could she disappear without leaving a trace when there was a crowd on February 21 on the banks of the Oise?
These are the unanswered questions posed by the investigators of the Versailles Research Section (Yvelines) and those of the Pontoise Research Brigade ten days after she fainted in the wild.
Monday, at the Franconville station school where she should have made her comeback, the emotion was palpable.
On this beautiful winter Sunday, Anne-Frédéric has planned to go jogging, as it often happens to her.
It is 4 pm, the sun is declining a little.
Sometimes she runs with friends.
Other times alone.
Like this February 21.
She meets one of her relatives before putting on her sneakers and says "see you later".
After her jogging, she has to see members of her family, including her parents who live like her in Taverny.
They are the ones, worried not to see her return, who will raise the alarm.
Contacted by Le Parisien, they want to “let the gendarmes work.
We don't know any more, ”they say.
Immediately, significant resources are deployed by the gendarmes on land, in the air and on the Oise.
Drone, helicopter, divers, sonar from the waterways gendarmerie, headquartered in Val-d'Oise.
But nothing.
The dog following Anne-Frédéric's trail marks in two different places.
Impossible to determine a precise direction which would have been taken by the jogger.
A meticulous sweep is organized "according to the principle of the snail", describes a source close to the investigation.
The soldiers left for the area where Anne-Frédéric potentially passed for the last time and moved away.
A tidy life
Furthermore, no technical investigation is possible since the teacher had neither cell phone nor means of payment on her.
His car, a Citroën Saxo, was parked in a parking lot near the towpath.
The images from the surveillance cameras were scrutinized without advancing the case.
The gendarmes deployed significant resources after the disappearance of Anne-Frédéric.
LP / Frédéric Naizot
The investigators therefore make working hypotheses.
In the case of a disappearance, they think of the possibility of suicide.
Anne-Frédéric was not known to have dark thoughts and no letter was found.
In addition, an investigator asks himself: "Why hide to commit suicide?"
The body was reportedly found.
They also think of a voluntary disappearance.
What purpose ?
According to the survey, Anne-Frédéric had no double life and until now led a tidy, smooth existence.
No husband, no known boyfriend, no child.
The floating body track in the Oise
The chance bad encounter is also explored.
But with the world on the spot, how to explain that a kidnapping thus goes unnoticed.
However, out of the hundred or so testimonies collected by the gendarmes, no one noticed anything suspicious.
Last worked hypothesis, that of accidental disappearance.
According to our information, the investigators would lean for a fall in the river.
Because the same day, at 4:45 p.m., walkers told the gendarmes that they had seen a body on the surface of the river which then sank.
The link was first made with the disappearance of a man on Saturday February 20, 60 km upstream, towards Compiègne (Oise).
Chance would have it that this body appears at the time of Anne-Frédéric's disappearance, which leaves the gendarmes dubious even if the witnesses spoke of a male body.
“It's specific to a body that has just fallen into the water.
First it floats, then it sinks, ”says a legal source.
Despite extensive research on dams, locks, underwater and on the banks, no remains have been found.
If Anne-Frédéric fell in the Oise, why no one gave the alert?
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"It's a very clear place and with the crowd that day, it also seems unlikely, tempers a source close to the file.
There are many possible directions and many inconsistencies in this matter.
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