Nightmare in France--'Yout' With Swords Takes Schoolkids Hostage

The story is that an unnamed, sword-wielding "youth" burst into a school and held a bunch of little kids and their teacher hostage in a stand-off with police that has now ended, thankfully with no one getting  physically hurt. The media have so far been mum re the youth's identity, but there could be a clue here:

The school is in Planoise, a neighbourhood of housing projects with a big immigrant population on the western edge of Besancon...

Hmm. I wonder if it was one of those angry "Haitian" immigrants.