They got to them in the nick of time.
Via NY Post:
The jihadists holed up in a Paris suburb apartment had been planning to attack Charles de Gaulle Airport and a shopping mall before a special forces team stopped them in the nick of time in a predawn raid Wednesday, French media reported.
French authorities said the terrorists in Saint-Denis comprised a fourth team of jihadists hell-bent on unleashing death and terror — in addition to the three teams that killed 129 people and injured 350 others in Paris on Friday, France TV reported.