French police are hunting the wife of one of the slain suspects in a wave of attacks around Paris, considered dangerous herself and the possible key to helping authorities dismantle what could be a terrorist network.

Hayat Boumeddiene, 26, wed Amedy Coulibaly in an Islamic religious ceremony in July 2009 — a union not recognized by French law. A circular distributed Friday by French police said Boumeddiene should be considered dangerous and potentially armed.

At dusk Friday, Coulibaly was killed by police who stormed a kosher market in eastern Paris and freed the gunman's hostages. French prosecutors said Coulibaly had killed four people at the grocery.