House search reveals clues for Paris police

Amedy Coulibaly, the gunman who killed four hostages at a Paris kosher supermarket, rented a small suburban house the week before the attack and filled it with an arsenal of up-to-date weaponry, police have said.

A search of the house has enabled police to identity a potential fourth attacker as investigators follow the money and supply systems for the three known killers, all of whom died in police raids.