Said and Cherif Kouachi, two brothers suspected in an al Qaeda-linked attack on Charlie Hebdo magazine in Paris, were killed in a shootout with police in Dammartin-en-Goele; a hostage taken by the suspects was freed. A gunman suspected in the murder of a policewoman yesterday killed four hostages at a Jewish supermarket in Paris; security forces killed the gunman, Ahmedy Coulibaly, who was a friend of the Kouachi brothers, and freed several hostages. A female suspect, Hayat Boumedienne, 26, is said to be at large. Al Qaeda in the Arabian Peninsula released a statement celebrating the attack on Charlie Hebdo and threatening further attacks on France.