A 65-year-old woman will be presented on Wednesday at the Dax parquet.
This grandmother, placed in police custody, is suspected of having wanted to murder her own husband and her grandchildren, aged 10 and 12, on April 15.
That day, a fire broke out in the family house located in Habas, in Chalosse, in the Landes.
On site, the emergency services found the grandparents and the two children, all injured and poisoned by the smoke.
They are hospitalized at the Bordeaux University Hospital.
But quickly the investigators will realize that the fire is not accidental.
The hypothesis of a premeditated crime is also supported by the results of blood tests carried out on the victims, specifies
Sud Ouest.
Investigators discover traces of harmful substances in the sexagenarian and the two children.
Doubts still remain on the scenario and above all, the motive for the moment remains unknown.
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Miscellaneous
Aquitaine
Assassination attempt
Investigation
Gendarmerie
Fire