A hostage-taking which ended in a feminicide.
Dominique G., already known for acts of domestic violence with expulsion measures, took his wife Cécile P. hostage late Thursday afternoon.
The madman then killed her and then turned the gun on him.
Before 7 p.m., this man, born in 1962, had entrenched himself in his business with his partner, aged 44, with whom he was separating, according to the Pontoise prosecutor's office.
The couple, parents of three young daughters, had been going through a divorce for two years.
The man first injured two employees, the first shot, while the second received shrapnel, said the prosecution, which opened an investigation for assassination, attempted murder and forcible confinement.
The GIGN, tried to establish contact with the hostage taker, but failed to intervene before the latter committed the irreparable.
"A robot was sent to locate, allowing to discover the lifeless bodies of the woman and her ex-spouse", informs the prosecution in a statement.